Message Systems acquires Port25 (PowerMTA)

Two weeks ago, Message Systems announced the acquisition of Port25, marker of the popular PowerMTA. Message Systems is the world’s main supplier of emailing infrastructures, running circa 20% of the world’s legitimate email. This purchase means an important milestone in the email sending arena. Both enterprises offer on-premise solutions to the world’s most massive emailing […]

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Categories: General, PowerMTA

What are the most important blacklists and how do you know if you are listed?

If you are reading this blog, you certainly know what a blacklist is. Nevertheless, we think it’s important to remember their significance in the email world and their impact on your deliverability. Blacklists are often referred to in different ways: RBL for Real-time Blackhole List or DNSBL for DNS blacklist. These terms all refer to […]

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Categories: General

PowerMTA: Why to choose PowerMTA for in-house email deliverability?

So you decided to take the path of in-house deliverability (see our article regarding this topic), but there is one more thing to think about: Which is the sending solution to pick out from the others? By Postmastery, we made up our mind and decided — as well as becoming both an authorized retailer and […]

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Categories: General, PowerMTA

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