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We manage our network to provide our customers with the highest server availability and best deliverability possible.  Marketo has a strong anti-spam policy and a team that handles blacklist notifications in our IP space and spam complaints.  We also cooperate with most major anti-spam providers and ISPs.  In addition, we maintain feedback loops for many of the most popular email providers.  For more information on feedback loops and ISPs with whom we have this arrangement, click here . Blacklistings are usually caused by sending mail to a spam trap email address.  For an explanation on what causes blacklisting, click here . When we receive notification of a blacklisting, we react in two ways.  First, we go through the procedures to remove the listing from that blacklist as soon as possible.  Second, we determine (if possible) which of our customers caused the blacklisting and work with them to improve their mailing lists to prevent a reoccurrence in the future.  This is usually a cooperative process, most frequently, a review of mailing policies and strategic pruning of a customer’s lead database will return them to best practices.    
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  Quick points: *Spamtraps are addresses owned by antispam organizations *Emailing a spamtrap (usually) gets your IP or domain blacklisted *Maintain current, direct opt-in with an active lead database to avoid this     What is a spam trap or spamtrap?   A spam trap, or spamtrap is an email address secretly owned by an antispam organization that is used to detect spam. Antispam organizations do not sign up for mailing lists, so they consider any email sent to these addresses to be spam. Once email is sent to the spamtrap, the antispam organization that owns this address will blacklist the IP that sent the email (or, less often, domains that are linked in the message).   Email administrators purchase subscriptions to various blacklists, and use the lists to block all incoming email from listed IPs or containing listed domains. From the marketer’s perspective, this can mean a high number of bounced emails leading to low lead engagement, and ultimately to weak revenue performance.   There are two types of spamtraps – pristine traps, and repurposed/recycled traps. A pristine trap is an email address that was never used by a person. A repurposed trap is an email address that once belonged to someone but is no longer a valid address; these addresses will bounce as bad addresses for at least six months before an antispam organization will turn them into live traps. <   How can a spamtrap get into my Marketo lead database?   Purchased data   Purchased data is unreliable. The antispam world does not like the use of purchased data so antispam administrators have made a concerted effort to get spamtrap addresses into the databases of data vendors. While data vendors may say they provide opt-in data in reality consent should be direct to your company. /p> Sending unsolicited email is prohibited by the Marketo Terms of Use because this practice has a high risk of causing blacklist issues that can destroy deliverability for multiple Marketo customers. To avoid spam traps get direct opt-in before sending email. If you have purchased data in the past we recommend setting any inactive purchased leads to marketing suspended or simply removing them from your database. Old data Repurposed traps are email addresses that were once valid but are now owned by an antispam organization. This can happen when a company goes out of business; expired domains are often purchased by antispam organizations. Sometimes a company that has a direct partnership with an antispam organization will allow email addresses of former employees or users to become spamtraps. Because antispam organizations will generally make sure future spam traps return a bounce as bad addresses for at least six months before they become spam traps you can prevent repurposed traps in your database by emailing remaining engaged with everyone in your database at least once every six months. Avoid “wake the dead” campaigns to addresses you have not contacted in more than six months. Unconfirmed form entries People can unintentionally enter spamtrap addresses into forms either by making a typo or by intentionally using a fake email address that happens to be a spamtrap. If you use single opt-in, you may add spamtraps to your mailing list. This is more likely to happen if you are a B2C company or if someone thinks they can get whitepapers or free trials simply by filling out a form with made-up information.   How can I identify spamtrap addresses?   Spamtrap addresses are considered trade secrets by the antispam organizations. They do not share these addresses because their goal is for senders to change their mailing practices rather than to simply remove spamtraps from their mailing lists.   That said, one thing we do know about spamtraps is that they tend to be automated processes and do not engage. Spamtraps do not click links. You can use smart list filters to identify inactive leads in Marketo.   How can I prevent spamtraps in my database? Maintain active, direct opt-in for all leads. Don’t purchase data. (To grow your list, sponsor events, use list rental services that send the first message for you, or use co-branded content that sends you only good leads) Email everyone you want to email at least once every six months Don’t add old data directly to your mailing list. (If you need to, add in small batches and send a welcome email with a slightly different subject to each batch.) Regularly clean your database of inactive leads Grant access to assets such as free trials and whitepapers as email links to discourage intentional use of fake email addresses on forms Use scripting on your forms to identify potential typos
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Overview   A blacklist is a database of IP addresses or domains that have been associated with the sending of unsolicited commercial email or spam.  Internet Service Providers (ISPs) and business email networks use information from blacklists to filter out unwanted email.  As a result there can be a drop in inbox delivery rates or overall delivery rates if the IPs or domains involved with sending email are listed on a blacklist. Marketo’s Email Delivery and Compliance team monitors blacklist activity on our IPs and domains daily. When we are alerted to a listing we reach out to the blacklist, attempt to identify the sender that triggered it, and work with the blacklist organization to get the listing resolved. There are thousands of blacklists out there most will not have a significant impact on your delivery rates. Below we have compiled a list of the blacklists that our customers most commonly encounter. Tier 1 Blacklist Spamhaus Impact: Spamhaus is the only blacklist that we categorize as a tier 1 for a reason: it has by far the greatest impact on delivery of all of the blacklists. It is the most well-respected and widely used blacklist in the world. A listing at Spamhaus will have a negative effect on your ability to deliver emails to your customer’s inbox and can cause bounce rates of over 50%.  Evidence suggests that most of the top North American ISPs use Spamhaus to inform blocking decisions. How it works: Unlike many blacklists, Spamhaus lists senders manually. This means that they are proactively watching sender activity, collecting data, and basing their listings on a number of variables. Most commonly senders are listed for mailing to spam trap addresses that Spamhaus owns. Sometimes Spamhaus will list senders based on recipient feedback as well. Next steps: Our team monitors closely for Spamhaus listings. When we see a listing we immediately alert the customer and contact Spamhaus to start the remediation process. Listings last until Spamhaus is satisfied that the offending sender has taken the appropriate steps to mitigate the problem.   Tier 2 Blacklists SpamCop Impact: SpamCop is not used by any of the major North American ISPs to inform blocking decisions but it makes it to the Tier 2 list because it can have a significant impact on B2B email campaigns. How it works: SpamCop lists IPs for one of two reasons: Either the email hit SpamCop spam trap addresses OR A SpamCop user has reported the email unwanted. Most of SpamCop’s spam traps are previously valid addresses that have not been active for 12 months or longer. Next steps: SpamCop is a dynamic blacklist, listings typically resolve themselves within one business day.  There is no action you will need to take to action the delisting with SpamCop, the Privacy Team researches every SpamCop listing and will request delistings when an alert is received that an IP is listed. If your email activity triggered a SpamCop listing it likely means that you have a list management problem that should be addressed. Manitu Impact: Manitu is a German blacklist and has a wide footprint in Europe.  Email senders with European audiences tend to encounter this blacklist most frequently. Manitu is not used by North American ISPs to inform blacklist decisions but if you’re sending to Europe a listing could be problematic. How it works: Listings are automatically activated when a sender mails to a Manitu owned spam trap address. Next steps: The Privacy Team researches and requests delisting when an alert is received that a Marketo IP is listed.  By working with this blacklist the Privacy Team is usually able to identify the customer and let them know that email activity from their subscription triggered a listing. Because Manitu operates solely on the use of spam trap addresses, getting listed by Manitu is a clear indication that senders need to audit their mailing lists.   Tier 3 Blacklists      SORBS   Impact: The impact of a listing at SORBS is very minimal. How it works: SORBS uses several methods to identify potential spammers. Most of their lists use spam traps to identify problematic senders. But SORBS will also list a sender based on their own user complaints, if SORBS administrators have received spam from the sender, or if they identify other high-level sending behavior patterns characteristic of spammers. Next steps: The Privacy Team monitors SORBS activity and makes delisting requests for Marketo IPs as necessary. Oftentimes, SORBS will refuse to delist within a certain timeframe based on the severity of the issue.  Sometimes this can be up to several weeks.   UCEPROTECT Impact: The impact of a listing at UCEPROTECT is very minimal, though the blacklist has a greater footprint in Europe. The organization does not have a good reputation in the industry because they charge senders to request delisting. How it works: UCEPROTECT lists IPs that send mail to their spam trap addresses. Next steps: We ignore these listings because the only way to have them removed is to pay. The pay-to-delist model is not well respected in the email industry so UCEPROTECT has a very limited reach.   ISP Blacklists   Some ISPs have their own blacklists that they use to inform blocking decisions. A few examples are Comcast and Verizon. If your IP is being blocked by one of these networks, and those networks have a large presence in your lists, a block of this kind could have a noticeable negative impact on delivery. Marketo monitors for this type of ISP specific blacklisting and the the Privacy Team works to resolve these as soon as possible. Usually blocks at Comcast and Verizon are resolved within less than 24 hours of a delisting request.   Additional Resources: Blacklist Deep Dive Abuse Report Deep Dive What is a spamtrap, or spam trap, and why does it matter? Blacklist remediation Blacklist resolution flowchart Successful lead reconfirmation What is a blacklist?
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If you sent an email from the Lead Database (as a Single Flow Action), as part of a campaign, or as a test email but didn't receive it, here are some tips.   Check the "From:" address   When sending a test message, make sure to check the "From:" address setting on your message. To do this, go to the Email Settings tab of the email editor. In the "From:" field, make sure that you either have a single valid email address, or a valid email address as the default, if you are using a token.   Many people want to send their messages from the lead owner. When you use the send test feature, the email address you are sending to doesn't have a full lead record, and so it doesn't have a lead owner. Since Marketo cannot send an email with no "From:" address, test messages without a valid email address in the "From:" field will not send.   Send as a Lead   If you have verified that the email had a valid From: address and you still aren't getting it, make sure to create yourself as a lead and send using a flow action.   See if the mail was sent   If you sent the email as part of a campaign or Single Flow Action, check the campaign's Results tab or your lead detail page to see if that mail was already sent to you. If it hasn't been sent yet, try waiting a little while longer.   Check your Junk Mail   In your email client, check your Junk Mail or Spam folder to see if the mail landed there. If it did, you should change the content of your email.   Check your corporate spam filter   Your corporate mail server may have blocked emails from Marketo; you should contact your IT department to see if this is the case. Please see our instructions for whitelisting Marketo's email servers: Add Marketo to Your Corporate Email Whitelist   Try sending to a different recipient   If you sent the original mail to your corporate account, try sending to a personal account on Yahoo or Gmail. If you sent it to a personal account, try your corporate mail account.    Use Marketo's Email Deliverability product   The Email Deliverability PowerPack , with Design Informant and Inbox Informant, can warn you when your mail is being rejected because of its content and help you identify junk mail pitfalls. Also, using Domain Keys and SPF improve the chances of your email landing in your leads' inboxes.   Contact Marketo   If you still can't figure out what happened contact Marketo to see if we can help.
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When someone emails abuse@marketo.com to tell Marketo that they received unsolicited email from one of our customers, the result is called an abuse report.  Instead of just hitting the “Report Spam” button, someone actually took the time to write to our abuse@marketo.com address and explain to us that they never wanted email from the sender.  Because of this direct complaint we take these types of spam reports very seriously. Only about 10% of our customers ever receive any abuse reports at all so it is cause for investigation if you receive one. If you receive notification that someone filed an abuse report against your account review your list management practices. Below are some things to consider: When people sign up to receive emails from you, is it made clear to them that they are giving you permission to email them? Have you recently added any new leads or lead sources? Have you recently added older leads to your database that you have not reached out to in the past 6 months or more? Was there anything about the campaign that was complained about that makes it different from previous campaigns?   In most cases people file these kinds of reports because: They never requested to be on your email list. They did request to be on your email list at some point but have forgotten because they have not heard from you in so long.   The importance of using explicit opt-in in your list building efforts cannot be stressed enough. You should also send to active leads consistently enough that they continue to expect emails from you. The best ways to avoid complaint driven reputation issues is to send to opted-in, engaged recipients. To help with this, a lot of senders clear out their inactive leads every 6 months or so. An inactive lead is a contact that has taken no action in the given time period— they haven't opened an email, clicked a link, visited your webpage, attended a Webinar, and so forth. Inactive leads are a dangerous group to continue mailing to because their behavior proves that they do not want to interact with your mail and will likely complain to Marketo or to their ISPs about it. We have a great resource on how to create a Smart List to remove inactive leads here. If you still need some help, please feel free to reach out to our Support team ( support@marketo.com ). Additional resources: Abuse Report Deep Dive Blacklist Deep Dive    
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Abuse Report An abuse report is when an email recipient forwards a complaint directly to abuse@marketo.com.  Marketo’s Privacy and Compliance Team processes all complaints to these addresses and will unsubscribe the complainer when possible.   Feedback Loop Complaint A feedback loop complaint is when an ISP forwards the complaints that originate from their users.  For example, when someone clicks the SPAM or JUNK button in their email client. ISPs that offer FBLs expect that subscribers like Marketo will mark the complainer as unsubscribed in the original database.  Marketo does process FBL complaints and marks the email address as unsubscribed.   Additional Information: Feedback Loops (FBL) Abuse Report Deep Dive Finding Leads that are Auto Unsubscribed for Email Spam Complaints / Feedback Loop (FBL)    
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  Market Support is here to help you with your issues in the quickest and most effective manner possible.  In order for us to do that, there are a few things we really need from you before you click the submit button to create a support case with us.   First, have you searched the community for a solution? The best kind of support case is the one you don't have to submit.  The Marketing Nation Community is an expansive site with a lot of content.  Have you checked Product Docs or Support Solutions for a resolution to your problem?  Have you checked to see if there is a community discussion thread that covers your question?  The Marketing Nation community is a 24 x 7 customer resource and a quick search for a keyword and phrase maybe all that separates you from a solution to your problems.   Second, what's the best way to reach Marketo Support? Marketo Support offers a variety of ways to reach our support team.  Depending on your issue, some of the support channels might be better suited than others.   Please be aware that only contacts from your company/organization that have been identified as an authorized support contacts or authorized support administrators can submit cases to Marketo Support.       Marketo Support (Support) The Marketing Nation Support area features a case submission application that allows you to select your case priority and also select what the Case Issue and Sub-Issue is.  These selections allow our automated case routing system to assign the case to the available support engineer that can best assist you.   Spark customers can submit cases through the support portal only
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If you've received a Blacklist Notification this is because it was determined that you were the most recently active Support contact for the Marketo subscription.   When the Privacy team is notified of a blacklist issue regarding one of our customers we look at the most recent case that the customer has open with our Support team.  We follow this process to ensure that the notice goes to an active and engaged user of Marketo.  Typically the most recent Support contact is the right person to send these blacklist notifications.   This notification process is mostly automated so we can't identify a specific recipient of the alert, they will always go to the person who most recently submitted a Support case.  If no Support case has ever been submitted a member of Marketo's Privacy Team will chose the contact manually.   Additional Resources: Blacklist Deep Dive Abuse Report Deep Dive
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When a customer triggers a blacklisting on Marketo's shared IP range that customer is moved to a set of IPs we call the quarantined IP range.  We do this to protect the health of our shared network and ensure the best deliverability possible for all of our customers on that network.   If you have received a Blacklist Notification from Marketo reporting that you have triggered a blacklisting your Marketo account is now in the quarantined IP range.   While you are in the quarantined range it is possible that you may experience a slight decrease in your deliverability rates. The reason for this is that you are now sending from a range made up of senders that have also caused other blacklist issues. All customers have received a notice of the listing and are in the process of repairing their database.   There are two ways to be removed from the quarantined IP range: Follow the steps outlined in our Blacklist Remediation article.  Be sure to fill out the form referenced in the email alert to indicate that you have taken steps to mitigate the issue. Demonstrate clean sending behavior for 3 months. We remove senders from the quarantined IP range if they have not triggered any new listings in 3 months.   To ensure your best deliverability rates blacklist issues should be addressed right away to prevent further damage to your sending reputation.   Furthermore, if no action is taken to improve list hygiene the issue will likely recur. Marketo's Privacy Team strongly recommend following the Blacklist Remediation steps.   Additional Resources: Blacklist Deep Dive  
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Unfortunately, we can only provide you with whatever information the blacklist provided to us. This information should all be included in the notification email you received from us. If that notification did not contain any information about the email campaign that triggered the blacklist issue, please contact Support.   Additional Resources: Can you give me the spam trap address that triggered the listing? What is a spamtrap, or spam trap, and why does it matter? What is a blacklist? How does Marketo respond to blacklisting and spam notifications? Top blacklists - What you need to know Blacklist Remediation Successful Reconfirmation
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When using Marketo it is not a requirement to set up DNS text records for SPF and DKIM.  However, Marketo recommends setting up SPF and DKIM because it improves the deliverability of your mailings.  Configuring and implementing one or both of these records is a way to verify that the server sending your mail is authorized to do so.   If a recipient domain is configured to check for SPF and/or DKIM and those DNS records are available and your mail passes the SPF/DKIM check, it further reinforces its good reputation.  Not implementing SPF/DKIM records does not add to or subtract from its reputation, it’s just not there.   Please note, not all domains check for SPF/DKIM and if this is the case, again, the presence of these records does not add or subtract from your mail’s deliverability. There is no negative effect to setting up these records, and it can improve your deliverability.  It is for these reasons that Marketo recommends setting up these DNS records and configuring their use in your instance of Marketo.   For more information on how to set up and configure SPF/DKIM, please read our KB article here.
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Issue Issue Description An email was sent to leads but immediately returned an 'Email Bounced Soft' Activity Type with the Activity Details stating: ' Details:  Empty address: []'   Solution Issue Resolution This is due to a token used in the 'From Address' Field in the Email editor that does not have a valid value or valid default value. For example: {{lead.Partner Email:default=edit me}} The Record's field value for 'Partner Email' is Empty. As there is no value for the record the token would use the default value 'edit me' which is not a valid value. A valid value must be an email string format such as mark@eto.com  
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Issue Is there a limit as to how many domains can be added when adding domains to Marketo Admin > Email > SPF/DKIM     Solution You are able to add as many domains as you wish to the Admin > Email > SPF/DKIM.  The basic requirement is that you have control over the domain DNS.
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Issue You have a lead that is marked as Email Suspended and you are not sure whether they can receive Marketo emails or not. Solution When emails bounce as spam, the lead that bounced is set to "Email Suspended." "Email Suspended" is a historical field.  A more accurate name for this field would probably be "This email was suspended at some point in its history."  The actual suspension only lasts 24 hours. To see if the lead is currently suspended, check the timestamp on the 'Email Suspended' field.  If it is more than 24 hours ago, the lead is not currently suspended and can receive email from your Marketo instance.  However, the "Email Suspended" flag will remain on the lead record for the purposes of future troubleshooting.  It is not possible to set "Email Suspended" to "false" once it has been set to "true."  The "Email Suspended Cause" field will provide the bounce message associated with the most recent spam bounce.    
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Issue An email hard bounces with reason "551 5.7.0 [internal] recipient blackholed".  The person is automatically marked as Email Invalid as a result.     Solution Blackholed addresses are those that Marketo have identified as spam traps, or those that have requested the Marketo Privacy team to block all Marketo originating emails.        
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Issue You see a soft bounce on a lead and in the details you see it show System send failure: Reply-To address parse error (value of the address) Solution Confirm the tokens you are using are for the proper field and that the value for the field is an email address. The parse error occurs when we cannot generate or create a proper email address in the From Email or the Reply To Email fields. The error will show in the parenthesis the value we tried to put in .. For example Service Department is in the parenthesis, this would be an example of a incorrect field being used.
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Issue How to re-subscribe records who are already unsubscribed.     Solution Once the person is willing to resubscribe to receive your emails, either of the following can be done: Smart Campaign: Change Data Value of "unsubscribed" to false.You can either use a Smart Campaign to execute this flow or can just go with single flow action ( select the lead, Person actions > Marketing > Change Data value; Attribute: Unsubscribed, New Value: False.) You can manually change unsubscribe from True to False. To do this, go to Lead database, click on the lead ( whom you need to unsubscribe), go to lead Info tab, look for unsubscribe field , remove the tick or check off the unsubscribe field checkbox.        
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Issue Description The exact distinction between the "Email Bounces" and "Email Bounces Soft" filter and trigger is unclear. Issue Resolution The “Email Bounces” trigger or filter will look only at hard bounces, where Marketo received a definitive "No" from the target server. The “Email Bounces Soft” trigger or filter only looks at soft bounces, which occur when we are unable to deliver the email, but did not receive a rejection from the target server. You can use both filters with "OR" logic in order to look at all bounces.
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Issue Description An email hard bounces with reason "551 5.7.0 [internal] recipient blackholed".  The person is automatically marked as Email Invalid as a result.   Issue Resolution Blackholed addresses are those that Marketo have identified as spam traps, or those that have requested the Marketo Privacy team to block all Marketo originating emails.     Is this article helpful ? YesNo
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Issue Description You have a lead that is marked as Email Suspended and you are not sure whether they can receive Marketo emails or not.   Issue Resolution When emails bounce as spam, the lead that bounced is set to "Email Suspended." "Email Suspended" is a historical field.  A more accurate name for this field would probably be "This email was suspended at some point in its history."  The actual suspension only lasts 24 hours. To see if the lead is currently suspended, check the timestamp on the 'Email Suspended' field.  If it is more than 24 hours ago, the lead is not currently suspended and can receive email from your Marketo instance.  However, the "Email Suspended" flag will remain on the lead record for the purposes of future troubleshooting.  It is not possible to set "Email Suspended" to "false" once it has been set to "true."  The "Email Suspended Cause" field will provide the bounce message associated with the most recent spam bounce. Is this article helpful ? YesNo
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