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Customers who have access to the Email Deliverability Power Pack, Reputation Power Pack, or Email Informant through our partnership with 250ok (now Validity) received a notification today to "schedule your migration" to the newest...
Executive SummaryWorldwide, COVID-19 has presented us with tremendous uncertainty. Globally, businesses are feeling the impact. During this time, Adobe is doing all we can to provide continuity and support customers like you. From...
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The concept of form abuse, AKA email bombing or list bombing, has been around for a long time. At a high level this is where addresses are added to your database through a form by someone other than the address owner. These attack...
For years Marketo has been developing a database of full email addresses and domains that are determined to be so risky to a customer’s on-going success and the health of the Marketo network that the addresses are never mailed to....
An updated blog related to Understanding a Spike in Click Activity Support, Services and Marketo Executives report an increase in customers escalating elevated email click volumes in performance reporting. The most typical escalat...
As you might know, Terra Mail will shut down their free email service at the end of June, specifically by the end of the day on June 30th. Since those domains will no longer be mailable, we will block any and all mail to the follo...
Making changes to your subscriber-facing brand or domain is a great time to rethink your subscriber experience! Avoid the surprise of unsubscribes and complaints by communicating your brand change early and often. Here are some ...
Carmi Lopez-Jones, an AMAZING Deliverability Consultant at Marketo, and I presented on Marketo's University Day at Summit. I promised to share the content we presented in this blog because our PPTs were updated from the copies you...
Carmi Lopez-Jones, an AMAZING Deliverability Consultant at Marketo, and I presented on Marketo's University Day at Summit. I promised to share the content we presented in this blog because our PPTs were updated from the copies you...
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What is it? The List-Unsubscribe header is in the unseen header portion of email messages. Recipients don't see the header itself but if the receiving email network leverages the List Unsubscribe Header recipients will see an Unsu...
Barracuda Spam FirewallAdvanced Threat Protection​The Barracuda Email Security Service includes a rich set of inbound and outbound email filtering policy options, including anti-spam, antivirus, rate control, IP policies, sender r...
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Are you frustrated by an SPF record that is not valid?One of the most common reason an SPF record will break is because it is including too many mechanisms.Are you looking for a quick win to make sure your SPF record is valid? Don...
Proofpoint Spam Detection performs two analyses:Connection Level Analysis Connection management features in Proofpoint Enterprise Protection test multiple connection-level data points including DNS, MX record verification, SPF, re...
When you add the Email Invalid Cause to display as a Column to any of your Deliverability Smartlists, you will see a code value*, and potentially a suffix as well, to help you understand the reason for a Hard Bounce. Soft Bounce r...
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Gmail has started labeling mail that is sent without encryption with a broken lock icon .Email encryption in transit (TLS)Gmail supports encryption in transit using Transport Layer Security (TLS), and will automatically encrypt yo...
Cloudmark is a secure email gateway that uses fingerprinting technology to block spam. Cloudmark has a broad footprint of networks who leverage their technology including: small and international ISPs, mobile operators, hosting pr...
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Identifying Unsuccessful Email AddressesOption 1: Import Marketo’s Deliverability ProgramOption 2: Creating your own SmartListsSmartlist: Chronically Bouncing AddressesIdentifying Chronic Non-Responders/UnengagedIdentify Chronic N...
Cracking the Inbox Code: GoogleIt can be challenging to consistently achieve inbox delivery at Gmail and Google Apps. One reason is that Gmail has very complicated filtering strategy, which learns from and classifies hundreds of ...
Recently my team was managing a customer escalation about an unexpected and suspicious spike in click activity in email. The customer observed all the links within an email activated immediately after delivery. This is a known iss...
The Email Deliverability and Privacy Team always stresses the importance of a strong sending reputation. By keeping an eye on your engagement (opens, clicks, etc.) and reputation (spam complaints, spam traps, unknown users, etc.) ...
Set Up Google's Postmaster Tools Customers are able to leverage Google's postmaster tools by setting up a TXT record for the From Address domain. Does not require a dedicated IP and does not require Marketo to set up DNS for the ...
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If you are experiencing email delivery issues to VerizonMedia/Yahoo/AOL, chances are you need to improve your sending reputation. The best way to ensure you have a good reputation is to send timely and relevant email to an active ...
Wikipedia defines SPF as follows: Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a d...
There seems to be a lot of confusion about what these are and what they do, so I thought I would do a little post on it to try and clear it up. Let's look at CNAMEs first.CNAME is short for "canonical name" and if you look it up o...
It's not an uncommon case here in support - Marketo says the email was delivered, but the lead says they never got it. What happened?Because I love analogy here's how I think of it:Delivering email to a server is rather like deliv...
Frequently people ask me for clarification on the different sorts of IPs Marketo offers, and the pros and cons of each, so I thought I would write a post on it, and since I love analogies, that's what I am going to do here.There a...
In a previous post, I talked about troubleshooting hard bounces. In this one, I'm going to talk a bit about soft bounces, specifically soft bounces due to throttling.What is throttling?Throttling is an issue that occurs primarily ...
Let's say that you have a weekly newsletter that you send out through Marketo and every week your deliverability is 95% or better - except last week! Your deliverability was only 80%! What the heck happened!?To find out, we pull u...
When I explain things, I like to do so using analogies. Here is the one I like to use when people ask me how they can improve their deliverability.So, imagine there's this hot new nightclub in town called The Inbox, and you really...

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