Given the increase in email fraud (phishing) and an increasingly complex email landscape, it is increasingly important for email service providers to implement email authentication properly. more
Within the digital messaging industry, an opportunity will sometimes arise for an email marketing manager to send a re-activation campaign to dormant email addresses, in order to galvanize subscribers who don't respond to your messaging. more
This seems to be one of the greatest mysteries to new postmasters. It can be confusing as the messages go to the SMTP MAIL FROM address, which can be different from, or the same as the from header. The key to understanding bounces (sometimes referred to as DSNs, Delivery Status Notifications or NDRs, Non-Delivery Reports) is that they should always be sent to the SMTP MAIL FROM address. Some mail platforms may not adhere to this rule, but most do. more
It's always refreshing to obtain a different perspective, especially from the open-source community regarding email sending infrastructure. For those who are currently utilizing an open-source product, we thought this feedback from one of our constituents would be valuable for decision makers. more
When asked what are the best configurations to use with PowerMTA? The answer is different for every region of the world. Configuration settings in the US will be vastly different than those in Europe for example, so global settings are not as effective. more
Port24 recently intruded PowerMTA v4.5 as a major new release of PowerMTA. It now includes a wide variety of new advanced features and functionalities that allow for greater flexibility and delivery control to help maximize overall performance and deliverability. more
One feature in PowerMTA's GA release of v4.5 is IP based Rate Limiting. The "source-ip-max-msg-rate" is specifically designed to give delivery engineers/admins additional control. more
Boasting delivery rates of over 5MM messages per hour, eAlert from MIS Sciences is United States' leading emergency alert notification system. An extremely reliable and flexible system was key for handling the delivery of several million high-priority messages each day. more
Port25 separates itself further from the competition with the release of PowerMTA v4.5, and one of the noteworthy options in this release is Scheduled Delivery Control. more
Communicator Corporation is an ESP with a different approach to email delivery. Unlike other ESPs, they allow each client to take ownership of their deliverability, which helps clients understand and appreciate that delivery is not just something for which their ESP is responsible. more
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