Tag: ESPs

May 2015: The Month in Email

Greetings from Dublin, where we’re gearing up for M3AAWG adventures. In the blog this month, we did a post on purchased lists that got a lot of attention. If you’ve been reading the blog for any length of time, you know how I feel about purchased lists — they perform poorly and cause delivery problems, […]

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We’re all targets

Last week, another email provider announced their systems had a security incident. Mandrill’s internal security team detected unusual activity and took the servers offline to investigate. While there’s no sign any data was compromised or servers infiltrated, Mandrill sent an email to their customers explaining the incident was due to a firewall rule change. Email […]

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ESPs and consolidation

Earlier this week Bloomberg news reported that an anonymous source  told them Verizon was looking to acquire or investigate a partnership with AOL. It didn’t take long for the Verizon CEO to quash the acquisition rumors. Acquisitions and partnerships have always been around in technology, this is nothing new. But it made me think a little bit about […]


Top Commented Blog Posts on WttW in 2014

Here are the top 6 most commented on blog topics our Industry News & Analysis blog. In April, Laura wrote about the ins and outs about Domain-based Message Authentication, Reporting & Conformance also known as DMARC.  If you are not familiar with DMARC or want to know the differences between strict and relaxed alignment, read […]

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Who pays for spam?

A couple weeks ago, I published a blog post about monetizing the complaint stream. The premise was that ESPs could offer lower base rates for sending if the customer agreed to pay per complaint. The idea came to me while talking with a deliverability expert at a major ESP. One of their potential customer wanted the […]


Role accounts, ESPs and commercial email

There was a discussion today on a marketing list about role accounts and marketing lists. Some ESPs block mail to role accounts, and the discussion was about why and if this is a good practice. In order to answer that question, we really need to understand role accounts a little more. What are role accounts? […]

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Gmail FBL update

Last week Gmail started contacting ESPs that signed up for their new FBL with more information on how to set up mailings to receive FBL emails. One of the struggles some ESPs are having is the requirement for DKIM signing. Many of the bigger ESPs have clients that sign with their own domains. Gmail is […]


Spamhaus on ESPs

Promoted from yesterday’s comments, Spamhaus comments on my discussion of filtering companies getting tired of ESPs. You hit the nail square on, Laura. As Laura knows but many here might not, I am with the Spamhaus project. At one time I was leading efforts to clean up ESP spam. I am not deeply involved with […]


Abuse it and lose it

Last week I blogged about the changes at ISPs that make “ISP Relations” harder for many senders. But it’s not just ISPs that are making it a little more difficult to get answers to questions, some spam filtering companies are pulling back on offering support to senders. For instance, Cloudmark sent out an email to […]


VerticalResponse acquired

The acquisition of email service providers continues. Last week Deluxe (yes, the check printing people) acquired Vertical Response. This appears to be positioning themselves to improve their collection of business services to include email marketing.

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  • Ongoing Yahoo delays

    I've been hearing from folks over the last few days that they're seeing an uptick in deferrals from Yahoo! The deferrals are not uniform. ESPs report they're seeing some, but not all, customers affected. Other ESPs aren't seeing any changes. It's not just you. But it would be very worthwhile to dig into engagement and other stats. It's possible this is a new normal at Yahoo! and they're tightening filters to catch mail that doesn't fit their standards but was previously difficult to filter.No Comments

  • AOL starts using Sender Score Certification

    Good news for Sender Score Certified IPs. Return Path recently announced that AOL has joined the list of ISPs offering preferential treatment to certified IPs.  1 Comment

  • iCloud Service Disruption

    40% of iCloud users were affected this morning during a service disruption between 2:15AM and 9:30AM. Apple System StatusNo Comments