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PowerMTA™ from Port25 Solutions, Inc., is the Industy’s leading email gateway application (SMTP server) that makes it easy for senders to adopt the latest authentication specifications ( SPF and DKIM) to comply with changing ISP policies for accountable outbound email delivery. No false promises. No over hype. It just delivers.
Port25 Solutions, Inc. has been fighting spam from the send side, by helping leading ESPs and top brands address the challenges of legitimate digital messaging and integrated customer communications. Everyday PowerMTA is responsible for billions of legitimate email messages. Messages from brand names and Fortune 500 companies you know and trust.
Port25 was formed in 1999 by email infrastructure veterans to address the specific needs of email marketers. It was clear then—and now more than ever—that specialized email infrastructure solutions are required to address current unique and evolving trends. It’s the proven choice among cloud -based enterprises as well. The specialized multi-threaded architecture that we developed to meet these needs continues to deliver significant throughput advantages and has provided an ideal platform for advanced control, delivery intelligence, and, tracking features essential to senders in today’s environment.
Except where otherwise noted, all postings by Port25 on CircleID are licensed under a Creative Commons License.
Port25, A Message Systems Company, has just released its latest version of PowerMTA v4.5r5 and PowerMTA Management Console v1.5r5. Highlighted here are the major features of this particular release more
Jobtome.com helps job seekers access millions of jobs gathered from hundreds of thousand's of recruitment agencies and employer sites across Europe. more
The following is written by Juan Altmayer Pizzorno, the original author of PowerMTA. Pizzorno has been developing email server software for over 25 years and currently serves as Sr. VP of Research & Development at SparkPost. He co-founded and was CTO of Port25 Solutions. more
Encryption is becoming increasingly necessary when transferring data across the internet, and email is no different. In PowerMTA 4.5 and later there are several methods to encrypt both inbound and outbound connections. Here we'll provide a quick overview of how they may be achieved. Keep in mind, this document only deals with encrypting the channel, not the content. more
With more than 8,000 platform users, 85 percent of which are brand-name retailers, reaching out to 110M US households, V12 needed an MTA (Messaging Transfer Agent) that would execute high delivery rates, offer more control, and easily enable the latest authentication protocols. more
In PowerMTA v4.5 and later versions messages can now be scheduled for delivery. The feature allows for scheduling multiple delivery windows. more
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
With over 5 million users, and delivering over 16 billion emails per month, MailChimp is one of the most highly regarded Email Service Providers, especially among those focused on small and medium sized businesses. more
A major obstacle that drove Emma to consider PowerMTA was an expected forthcoming collision between mail volumes that had risen to 375M messages/ month, and its 10-year-old, home-grown PHP-based system. more
With expansion on the horizon, email marketing company gets more out of its hardware to meet growing demand. GetResponse CEO, Simon Grabowski, says PowerMTA's features remove barriers that prevented the company from offering customers a high level of service without growing pains. more
UK-based email marketing solutions provider Forfront is a private company that serves over 1000 users sending 120 million emails per month. more
With the cloud, senders no longer need to plan for and procure MTAs and other IT infrastructure weeks or months in advance. Instead, they can instantly access hundreds or thousands of servers in minutes and deploy massive amounts of emails faster than ever. more
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