Postmastery Blog

If you are considering an ‘on-premise’ email marketing solution, there are many options to choose from. One option is to choose a software vendor that provides the necessary components. The advantage of doing this is that the campaign front-end, MTA and bounce/complaint management, is included in an integrated solution. [...]

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### Jobtome is one of the most important job search engine in Europe [Jobtome](http://www.jobtome.com "Jobtome") help job seekers access millions of jobs gathered from an hundred thousand’s recruitment agency and employer sites. Jobtome help companies reach millions of job seekers via pay-per-click based job advertising [...]

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2016/04/06, by Willem

Gmail introduces emails with lock

From now on computer users can see if their emails that go through Gmail are safe. If so, the email has a special marking. For the time being, this service is only available in the United States. So there is lots of work to do for the companies that send huge amounts of mail. Their main challenge is to keep everything tightly [...]

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Xsarus is a supplier of web applications and e-commerce applications, both of which need a well-oiled email system. Xsarus has found the solution by obtaining a PowerMTA based, bulk email sending system, says Xsarus partner Bram Hoekman. "We used to work with Postfix, a popular mail server. One of Postfix’s advantages is [...]

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2013/02/08, by Maarten

Email domain best practices

Domains in emails are important for identification, trust and reputation. But emails can embed many domains used for different purposes. They are listed below: * IP hostname * Envelope sender domain * From header domain * Reply-To header domain * Sender header domain * Message-ID domain * DKIM signing domain * Image URI [...]

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Categories: deliverability


2012/02/07, by Maarten

What DMARC means for you

A week ago a DMARC went public causing a tidal wave of publicity, discussion, and fuzz. Many senders are now asking what they should do with it. In this post I will try to put things in perspective, so senders can judge better what DMARC means for them. First of all, DMARC is not something completely new. For 18 months Paypal, [...]

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Categories: DMARC


A common question among professional senders is: should I use an Email Service Provider (ESP) or can I send my emails in-house? To find a good answer can be difficult. There are a lot of ESPs and a lot of software vendors ready to help you, but where to get objective advise from? My customers are senders that use ESPs, in-house [...]

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2010/07/14, by Maarten

On the classification of bounces

Delivering large volumes of email can be difficult. Properly handing the bounces can be even more challenging. To decode, analyze and classify the hundredths of different bounce mail formats is a complex task. To give you an idea what you might encounter, here are some examples of bounces: 421 4.7.1 Intrusion prevention active [...]

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