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Included in this article Overview Data you’ll get from Email Bounces Bounce Categories Hard Bounces Soft Bounces Bounce Details Building the Directory 1. Create 6 custom fields 2. Create a Program to house everything 3. Create a Static List 4. Create two Smart Campaigns Smart Campaign One - Logging Email Bounces with Bounce Details Smart Campaign Two - Remove Leads From the List After Successful Deliveries 5. Create Custom List View Showing Bounce Details Overview Bounce activities carry details for why the email was bounced, but it’s housed within the activity log entry, not in a field on the lead record, so it’s difficult to export that data. This article will show you how to extract that information to create a directory of leads bouncing emails and how to make the list automatically update. This will also create counters for bounces and successful re-deliveries after bounces happen. Data you’ll get from Email Bounces Bounce Categories Email bounces come in different types depending on why the email was bounced; Hard Bounces or Soft Bounces. Hard Bounces Hard Bounces come in two types, Category 1 and Category 2. Category 1 bounces are emails that have been marked as spam by the recipient mail server. Many email servers monitor blacklists or spam traps, so after de-listing with them, leads that have had a Category 1 bounce previously may be able to receive emails again. Category 2 bounces occur due to an email address that is invalid or doesn’t exist. Soft Bounces Soft Bounces come in three different types, Categories 3, 4 or 9. Category 3 bounces are usually temporary, caused by full mailboxes, timeouts, or throttling. Any email with this designation has been retried for up to 24 hours (36 for AOL). Category 4 bounces are caused by technical problems, Transient Failures, Admin Failures, DNS Failures. Any email with this designation has been retried for up to 24 hours (36 for AOL). Category 9 bounces are unknown, undetermined or gibberish details. Any email with this designation has been retried for up to 24 hours (36 for AOL). Bounce Details When an email is bounced, the recipient mail server includes details of why it was bounced. These are created by the admin of the recipient mail server and vary greatly, but most will give some explanation that can give valuable information. Email Bounce Codes Building the Directory 1. Create 6 custom fields You’ll need 6 custom fields, two DateTime fields, two Score fields, and two String fields Name the DateTime fields “Bounce Date” and “Email Delivered After Bounce”. Name the Score fields “Email Bounces” and “Deliveries After Bounces” Name the String fields “Email Bounce Details” and “Email Bounce Category” Directions for creating Custom Fields can be found here: Create a Custom Field in Marketo 2. Create a Program to house everything Use a default program type and name it "Directory of Leads Bouncing Emails". Info on creating programs can be found here: Create a Program 3. Create a Static List This static list will be your actual directory that contains all of the leads that are currently bouncing emails. Name it "Active Bounce List". Info on creating a static list can be found here: Create a Static List 4. Create two Smart Campaigns These two Smart Campaigns are what will be used to add and remove leads from your active bounce list. Info on creating Smart Campaigns can be found here: Create a New Smart Campaign Smart Campaign One - Logging Email Bounces with Bounce Details Your first Smart Campaign will be used to listen for any email bounces that occur. The campaign will populate the “Bounce Date”, “Email Bounce Category” and “Email Bounce Details” fields. It will then add one point to the “Email Bounces” score field which can be used to count how many bounces have occurred per lead. Lastly, the campaign will add the lead to the static list which will be an active directory of leads who are bouncing emails. Campaign Smart List Use the two triggers of “Email Bounces” and “Email Bounces Soft” in the Smart List. Set both triggers to “is any” so that they will fire whenever any email bounces for any reason. Campaign Flow The Flow of the campaign will have 5 flow steps. The flow will use a System Token and some Trigger Tokens, which can be used to pull details out of the action that activated the trigger. In this case, the Trigger Tokens will be pulling out the details on why the emails were bounced. That info is in the bounce message and is logged in the lead's activity log. Normally you'd have to comb through the activity log one at a time to find these details for each individual lead. This method, however, will pull the details out automatically for all leads. Flow Step 1: Change Data Value Attribute: “Bounce Date” New Value: {{system.dateTime}} Flow Step 2: Change Data Value. Attribute: “Email Bounce Category” New Value: {{trigger.category}} Flow Step 3: Change Data Value Attribute: “Email Bounce Details” New Value: {{trigger.details}} Flow Step 4: Change Score Score Name: “Email Bounces” Change: +1 Flow Step 5: Add to List List Name: “Active Bounce List” Smart Campaign Two - Remove Leads From the List After Successful Deliveries Campaign Smart List The Smart List of the campaign will need a trigger for “Email is Delivered” set to “is any” and also a filter of “Member of List” looking just for leads that belong to your Static List. This way, the campaign will only apply to leads who have had an email bounce but have then had an email successfully delivered afterwards. Campaign Flow The Flow of the campaign will have 3 flow steps to do the following; log when the email was delivered, add a point to the "Deliveries After Bounce" Score Field, and remove the lead from the "Active Bounce List". Flow Step 1: Change Data Value Attribute: “Email Delivered After Bounce” New Value: {{system.dateTime}} Flow Step 2: Change Score Score Name: “Deliveries After Bounces” Change: +1 Flow Step 3: Remove from List List Name: Operational.Active Bounce List 5. Create Custom List View Showing Bounce Details The custom fields you’ve created for email bounce information won’t show automatically in the view of your list. You can create a new view of the list to show just this information so that when it is exported it will give you only the email bounce information you need. Once the list has the necessary details, it can be exported with those columns included so that you can work with it. You can identify emerging trends and issues with your deliverability by looking for common themes among the bounce details. Directions for creating Custom Views can be found here

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(Article Updated - August 2024) Overview A blocklist 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 blocklists to filter out unwanted email. As a result there can be a drop to inbox delivery rates if the IPs or domains involved with sending email are listed on a blocklist. Marketo’s Email Delivery and Compliance team monitors blocklist activity on our IPs and domains daily. When an impactful listing occurs, we reach out to the blocklist, attempt to identify the sender that triggered it, and work with the blocklist organization to get the listing resolved. There are thousands of blocklists, most will not have a significant impact on your delivery rates. Below, we have compiled a list of the blocklists that commonly appear across our sender ecosystem. Each blocklist has been grouped into a top tier (Tier I) by most impactful, to the bottom least impactful tier (Tier III). These may have little to no impact across our sender network. Tier I Blocklist Spamhaus (SBL) Impact: Spamhaus is the only blocklist that we categorize as a Tier I for a reason: it has by far the greatest impact on delivery. It is the most well-respected and widely used blocklist 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 blocklists, Spamhaus lists senders manually. This means they are proactively watching sender activity, collecting data, and base 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: Please note that every Spamhaus email can be quite different depending on the information provided and the nature of the listing . Because Spamhaus has multiple types of listings, the remediation steps are based on which type of blocklisting has occurred. We have listed the most common types to affect Marketo customers, from most to least impactful. Impact can range from a full block of top severity, to a partial block that is less severe (CSS Data, DBL). If remediation isn’t performed and the problem not addressed, these listings can increase in severity and turn into a full blocklisting. Spamhaus Blocklistings Types SBL (full blocklisting) Considered the most impactful. Remediation steps: Our team monitors closely for Spamhaus listings. Once alerted to the listing, we send an email notifying the customer, and reach out to the Spamhaus contact to start the remediation process. Only a Marketo delivery team member should be in direct correspondence with the Spamhaus contact, to speak on behalf of the customer, and to relay their questions and instructions, ensuring quick resolution and reduced impact. Senders that trigger this listing on a shared IP range will be moved to a more isolated, penalty range (IPB), so as not to impact the other shared senders. Those affected on a Dedicated IP, only impact their own sending and will not be moved. However, depending on the severity of the issue, our team may need to revoke a customer’s ability to send any emails until full resolution. The listing will last until Spamhaus is satisfied that the offending sender has taken the appropriate steps to mitigate the problem. SBL CSS Customers are alerted of the listing with an email containing all the information needed to immediately begin the remediation process. This is part of an automated trigger listing, that allows for a customer to delist directly on the Spamhaus website, after they’ve completed remediation. Remediation steps: Customers will go to the Spamhaus IP lookup website, at https://check.spamhaus.org, where they can check on the status of their IP and continue to monitor it in real time, until it is no longer listed there. Follow the remediation and delisting instructions provided, and check for specific details in the blocklist notification email. DBL (Domain blocklisting) Customers will receive an email notification alerting of the company domain being listed. The email will contain specific information to help narrow down and identify which email source likely triggered it within Marketo. It’s important to note that any email sent from outside of Marketo, that contained the company domain, is suspect. This means, if the sender uses multiple IPs and/multiple email platforms, then any of those could be the source. Remediation steps: Follow the detailed instructions in the email, which will also provide a link to the Spamhaus Domain reputation checker webpage, to check the real time listing status of the affected domain. Once the email source is identified and cause addressed, this customer will follow the online instructions to request to be delisted. Tier II Blocklist 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 II list because it can have a significant impact on B2B email campaigns. SpamCop is considered a Tier I one blocklist for B2B marketers but a Tier II for B2C marketers. SpamCop is a dynamic IP blocklist, that can affect a single IP or a subset of IPs Typically, the block will automatically lift within one business day, but can take longer for relisted IPs. To have triggered a SpamCop listing likely means the sender has a list management problem that should be addressed. 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. Remediation steps: If you are seeing a significant number of bouncing emails caused by a SpamCop blocked IP but aren’t sure if your email activity triggered the listing, first identify whether you are sending on a shared sender network or not. If sending from a shared IP range when this occurs, you or any other customer sending from the same network may have contributed to the IP block. This IP block will automatically get dropped within a business day. For those on a Dedicated IP that trigger a listing, refer to the above remediation steps and resources, to address the list management issue. Tier III Blocklist (Low/ No impact ) These are considered the lowest tier and therefore cause the least impact across the Marketo sender ecosystem. Some of these blocklists were more impactful at one time, while others are only impactful based on the sender region (Manitu). Others still can suddenly flare up (Lashback). There are also many blocklists that are ignored (0spam), and are not taken seriously because they do not provide any means to delist once on the list (NoSolicitado) or that they charge money to have the listing removed ( UCEPROTECT ). The pay-to-delist model is not well respected in the email industry. When using blocklist tool checkers, such as MXToolBox, many blocklists will appear, but very few are relevant. Here is our selection of Blocklists you may come across that are least impactful: Project Honey Pot SpamAssassin URIBL/SURBL DrMX PSBL 0spam HostKarma Ascams ZapBL Barracuda Trendmicro Inc. Cloudmark Proofpoint Invaluement ISP Blocklists Some ISPs use internal blocklists to make blocking decisions. Examples include AOL, Yahoo, Gmail, Outlook and Hotmail. 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 significant ISP blocks. Those experiencing deliverability issues with emails not making it to the Inbox and bulking in the spam folder may benefit from additional services with our Email Delivery Consultants. Remediation Steps: Email Delivery Compliance Team works to resolve any ISP blocks. ISP blocks are are usually resolved or lifted within less than 24 hours of a delisting request. Customers experiencing significant blocks for Microsoft domains (outlook.com, live.com, microsoft.com), can submit a request to the delivery team to seek mitigation on their behalf. Additional Resources: Blocklist Deep Dive Abuse Report Deep Dive What is a spamtrap, or spam trap, and why does it matter? Blocklist remediation Blocklist resolution flowchart Successful lead reconfirmation What is a blocklist?

Setting an email to "operational" does the following No unsubscribe link automatically added Email will be sent to leads set to Unsubscribed Email will be sent to leads set to Marketing Suspended Note - when sending an operational message, Unsubscribed and Marketing Suspended leads will still be included in the "blocked from email" count on the schedule tab of the campaign. When is it OK to use the operational setting? Sending marketing email to unsubscribed addresses is illegal. For this reason, you should be extremely careful to only use this setting in extremely limited circumstances. Using this setting incorrectly violates Marketo's Terms of Service, and most antispam laws. There may be legal consequences for using this setting incorrectly. Good uses of the operational setting fall into two categories: Transactional messages Relationship messages What's a transactional message? A transactional message is part of a transaction that a lead has initiated and you are responding to. Here's some examples of transactional messages: Receipts for purchases Registration confirmations Download links in response to form fill-outs Requested assets (whitepapers, spec sheets, etc.) What's a relationship message? A relationship message describes something that affects your business relationship with the lead. Here's some examples of relationship messages: Downtime notifications Changes to terms of service Recall notices End of service notifications Operational messages should not contain any marketing content at all. In other words, do not use the operational setting to send a message that contains a receipt and a promotion, only a receipt.

Issue If your IT department or a client asks for your Marketo dedicated sending IP address in order to whitelist your marketing emails, here is how you can find it. Solution Your Marketo instance's dedicated IP address can be found by sending yourself a live version of one of your Marketo emails, then checking the message headers for the IP address that it was sent from. It should also be included in the original documentation that Marketo's deliverability team would have provided you when the dedicated IP was set up. If you are unable to locate the IP address in the emails, or are unable to find your original documentation, please reach out to Marketo Support and we can look it up for you. Who This Solution Applies To Customers with a dedicated sending IP

Issue You are experiencing slow processing of campaigns, smart lists, and reports. Solution There are three key components that can slow down an instance: Number of trigger campaigns: Trigger campaigns are always on, always listening. If there are 50 campaigns triggering at the same time, all the 50 triggers will be in queue, slowing down your processing and routing inside Marketo. Solution: Reduce the number of Triggers. Convert some of the triggers to batches: Batches also run all the flow steps for every lead at once, instead of serially, which reduces total processing time. Complexity of smart lists: The more complex a smart list, the harder it is for the system to figure it out, which increases backend processing and even creates campaign failures from timeouts. Solution: Reduce the number of nested smart lists called in a smart list. Whenever you ask Marketo to call another Smart List, it has to wait until all of the other smart lists finish, before putting together the final counts. Instead of Marketo looking for the list and running it, just put the filters in the trigger itself. Volume of Leads: With regular cleaning and good systems design, it is fairly easy to keep your system running fast. Reduce the number of leads that can flow through with filters. Clean up the inactive leads at regular intervals.

Issue You see a record in the database has something similar to the following Email Suspended Cause: "554- Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means." Solution The 554 error is generated by a hard bounce due to a spam block. It is possible that one of the sending IP addresses used may have been on a temporary blacklist the day of the attempted send. This happens while using shared IPs when another Marketo instance using the same IP hits a spam trap, putting the IP on a blacklist for 24 hours. This error can also happen to users on a dedicated IP if they hit a spam trap with one of their email sends.

Issue Issue Description How to add a seed list in a batch Smart Campaign or Email Program. Solution Issue Resolution Import the seed list addresses into an appropriately-named static list Add a filter in the Program/Campaign Smart List to include the static list. The trick will be to make sure the filter logic is correct. Advanced Logic may need to be used in the Smart List of the Program/Campaign. For example, if there's a sending campaign with 5 filters to send to an audience 1 AND 2 AND 3 AND (4 OR 5) then you will want to use Advanced Logic and put parentheses around the original filter set (1 AND 2 AND 3 AND (4 OR 5)) and add the seed list outside the parentheses with OR logic (1 AND 2 AND 3 AND (4 OR 5)) OR 6 In that advanced logic, the original intended membership (1 through 5) exist within its own set of parentheses and the Seed List is included in addition (OR 6).

This is a article attached image Upon signing a contract with Marketo you are provisioned a Marketo instance and a Support Service. There are four different types of Support Services which are available to meet different customer support needs: Online (Legacy) Business or PREMIER SUPPORT BUSINESS (Legacy) Premier or PREMIER SUPPORT ENTERPRISE (Legacy) Elite or PREMIER SUPPORT ELITE Each Support Service has a different Service Level Target (SLT). An SLT is the amount of time Marketo Support targets to make first contact with you after a support case has been submitted. SLTs differ for each Support Service and priority level. Priority levels range from Priority P1 to Priority P4. Here are the SLTs and priority levels for each Support Service: Priority Online (Legacy) Business PREMIER SUPPORT BUSINESS (Legacy) Premier PREMIER SUPPORT ENTERPRISE (Legacy) Elite PREMIER SUPPORT ELITE P1 1 hour 1 hour 1 hour 30 minutes 30 minutes 30 minutes 15 minutes P2 4 hours 3 hours 2 hours 2 hours 1 hour 2 hours 30 minutes P3 6 hours 5 hours 4 hours 4 hours 2 hours 2 hours 1 hour P4 3 days 1 day 1 day 1 day 1 day 1 day 1 day Here are the descriptions for each priority level: Priority Description P1 Mission Critical: Core business function down or potential loss of mission critical data P2 Urgent: Major feature or workflow is not functioning. Mission critical workflow and majority of user community is not blocked P3 Important: Normal usability or task completion is impacted but functional, or workaround is available P4 Minor: Minor issue requiring a correction. Normal workflow is not impacted Find more information About Support here!

We have enhanced the behavior of the unsubscribe functionality to make it “durable”. We have added a master email status, which is separate from the unsubscribe flag visible on the lead detail record. If the unsubscribe flag is set from false to true, the master email status is updated, and the change is propagated to other leads with the same email address. Update the Unsubscribe flag from True to False (e.g. Re-subscribe a lead) When a lead is imported, the unsubscribe flag WILL NOT be overwritten by the import. Here are the ways a lead can be re-subscribed: 1. In SFDC, uncheck the Email Opt Out field. This WILL sync to Marketo. 2. Manually update the lead detail record by un-checking the unsubscribe flag 3. Run a Change Data Value Flow Action on one or many leads a. Select the attribute “unsubscribe” and set the value to False 4. Update an existing lead via SOAP API 5. Form Field – set a field on a form to set the unsubscribe flag to “false” and this will unsubscribe the lead a. Best practice would be to have text on the form that says that by filling out this form, they are agreeing to receive email communication Creating a New Lead When a new lead is created, we check it against the master email status table. If the lead was previously unsubscribed, we will update the record to be unsubscribed. Changing an email address If you change the email address of a lead to an unsubscribed email address, the lead will be unsubscribed. This change can occur in either Marketo or SFDC. If you change an unsubscribed email address to one that is subscribed, the lead will be subscribed.

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

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

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.

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.

Knowledgebase

Maintaining a Directory of Leads Bouncing Emails

Top Blocklists - What You Need to Know

Customer User Guide - Marketo Customer Support Links

Operational Emails - Important Information

Where Can I Find My Dedicated IP Address?

Marketo Running Slow

Email suspended cause 554 error

Adding Seed List to Smart List in Batch Campaign or Email Program

Service Level Targets (SLT)

Durable Unsubscribe - How Leads are Unsubscribed and Re-subscribed

Can You Give Me More Information regarding the Blacklist Issue?

Email Bounced Soft With Details 'Empty address: []'

How the Email Suspended Field Works

Soft Bounce “System Send Failure Reply-To Address Parse Error”