AOL and Yahoo merge could impact your email delivery and MTA

A few weeks ago, AOL reported that AOL and Yahoo will come together under the OATH umbrella and merge with the Yahoo email infrastructure to serve both brands. This happened on 20 February 2018, and now all the AOL recipient domains’ MX, including the following, will point to mx-aol.mail.gm0.yahoodns.net: – aol.com – verizon.net – aol.co.uk […]

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Categories: Deliverability, PowerMTA, Providers

Case study – Why typo domains can cause severe email delivery issues

In our daily email delivery monitoring activities, we recently saw the damage that typo domains can do. In this case study, simple typos in domains caused severe email delivery issues. We will recap what happened and how we solved the issue. Hopefully, other senders can avoid this kind of situation in the future. Postmastery, we […]

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Categories: Deliverability, PowerMTA

Five new delivery controls in PowerMTA 4.5

PowerMTA always had a strong focus on ‘doing one thing, and doing it right’. That one thing is email delivery. This sounds like a simple task, but it is hard to do at scale, both in terms of volume as well as in terms of the differences in the behaviour of receiving systems. Now, the […]

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Categories: PowerMTA

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