Interspire Taps Port25 Solutions to Propel Digital Messaging Infrastructure | Port25 Solutions, Inc.
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By Fred Tabsharani

Interspire Taps Port25 Solutions to Propel Digital Messaging Infrastructure

Ellicott City , MD, February 16, 2010 — Port25 Solutions, Inc., a leading supplier of advanced email messaging infrastructure solutions, announced today that Interspire has chosen PowerMTAT, Port25’s flagship product, to power its growing email messaging capabilities.

Interspire, a privately-held Australian software company with over 40,000 clients that develops content management, shopping cart, knowledge management and email marketing software, selected PowerMTAT for its ability to efficiently manage an ever-increasing email workload generated by its BigResponse email marketing service.

Previously, Interspire would need to deploy numerous instances of traditional email delivery software to scale their service or to separate delivery between customers across their universe of IP addresses. Chris Boulton, Senior Software Engineer and Systems Developer of Interspire stated that a key determining factor was “the ease and flexibility of configuring PowerMTAT to effortlessly manage various email streams. It simply cut our configuration time from days to minutes.”

Among the technical features that were most appealing to Interspire were VirtualMTAs. This innovative aspect of PowerMTAT improves overall efficiency through a reduction in the servers required to deliver large volumes of customer email segmented by unique IP addresses. VirtualMTAs also enhance deliverability by offering highly precise mailing delivery control with options to enable or disable email authentication methods such as DKIM/Domain Keys, and also to configure granular delivery rate shaping parameters and priorities on a per domain and/or per email stream basis.

Chris adds, “During the evaluation period implementation of PowerMTAT, we noticed a sharp decrease in the amount of time we needed to spend managing our deliverability by leveraging the ‘automatic backoff mode’ and rate limiting options to ensure we did not overload the receiving SMTP servers.”

PowerMTA was the first to offer automatic, real time delivery modifications based on remote ISP responses, which is just one of the many inline features that is widely used today by ESPs and corporate clients alike. It permits Interspire to leverage the speed of deliverability for email campaigns scheduled by its clients, adapt in real time to better comply with ISP policies, and enables future expansion of their email marketing initiatives to manage larger volumes of email.

Interspire evaluated other MTAs (Message Transfer Agents) in the marketplace but found that choosing a brand other than PowerMTA would not only be much more expensive, but also require a complete overhaul of their existing digital infrastructure. Part of the allure of PowerMTAT is its ability to integrate naturally with all commonly-used operating systems. Given Port25’s sole focus on the MTA, not only is PowerMTA the best technical solution for Interspire, but Port25 is truly a complement as well, in contrast to other vendors that were considered.

About Interspire

Interspire develops a suite of e-commerce software and services used by more than 40,000 organizations worldwide, including Fortune 500 companies (Intel, Shell, GE), enterprise organizations (Virgin, Ubisoft,, and thousands of small/medium businesses and digital agencies. Privately-owned and based in Sydney, Australia, the firm also maintains North American headquarters located in Austin, Texas.

About Port25 Solutions

Since 1999, Port25 Solutions has provided specialized email infrastructure software products that address the unique demands of customer communications and email marketing applications. PowerMTA, Port25’s flagship product, provides senders with superior performance and advanced features to proactively manage their sender reputations. Port25 customers include top-ranked email service providers and leading brands such as MySpace, iVillage, Cabela’s and CareerBuilder. Founded in 1999, Port25’s mission is to realize the potential of email as a platform for legitimate and effective customer communications.

Port25 Solutions, Inc.
6011 University Blvd., Suite 470
Ellicott City, MD 21043
Tel:  410-750-7687
Fax: 410-750-1737

Port25 and PowerMTA are trademarks of Port25 Solutions, Inc.

9130 Guilford Road // Columbia, MD 21046 // (410) 750-SMTP port25-logo