PowerMTA Features


PowerMTA provides the unique features and capabilities required by email service providers and enterprises to maximize the effectiveness of email marketing and customer communications, and to maintain their standing as senders of legitimate mail.

Additional details on each of these PowerMTA features is available for a more in-depth review.

VirtualMTA Technology — VirtualMTA technology allows senders to control the source IP address for each single message. Each VirtualMTA performs its delivery functions independently; therefore, as long as the source IP is not blacklisted, your message has a higher chance of being routed to the inbox.

Delivery Policy Management — PowerMTA lets you set your configurations globally, per recipient domain, per campaign, per client, per “VirtualMTA”, etc. to help meet ISP standards including:

  • Number of simultaneous connections
  • Number of messages per connection
  • Number of delivery attempts per hour (throttling)
  • Retry period and bounce period
  • Authentication method

In addition, PowerMTA provides support in these areas:

  • Ability to break connections of lower priority queues
  • New IP address warm-up feature to help build reputation
  • Ability to pause queues and delete or re-start

Power Queue — the heart of PowerMTA: performance and scalability:

  • Delivers 10x more messages per hour than leading freeware alternatives and corporate mail systems
  • Strict compliance with Internet email protocols
  • Includes both outbound and inbound message processing

Segmentation & Classification — built-in functionality includes:

  • VirtualMTAs allowing you to segment your mail-streams as necessary. Each VMTA may have its own IP address and delivery policy configured by you.

Reputation Monitoring — built-in functionality lets you stay on top of your reputation and be proactive about fixing problems:

  • Real-time reputation monitoring
  • Immediate notification of perceived blocks
  • Ability to implement new delivery policy for perceived blocks

Delivery Reporting — PowerMTA lets you track what is important to you and allows you to access the data through a variety of methods including:

  • Command line statistics and analysis utility
  • Web-based status monitoring
  • Data export of statistics log (XML, CSV, HTML, etc.)
  • API to statistics log (C, Java, Perl)
  • Data can be accessed in real-time or batch mode.
  • Statistics can also be retrieved on a “per job” or “Virtual MTA” basis.

Integration & Personalization — Integration with your CRM is easy with PMTA:

  • Standard submission interface using SMTP
  • File-based submission using pickup directory
  • Proprietary submission interface through our API (C, C++, Java, Perl, .NET)
  • Data exports from delivery log (XML, CSV, HTML, etc.)
  • API to delivery log (C, Java, Perl)
  • Forwarding of inbound messages to file or via local pipe

Configuration & Control

PowerMTA is easy to install and configure. Most users have it up and running in just a few minutes.

  • Installation follows the common approaches used on each of the major platforms.
  • Text-file configuration tool comes pre-populated with common settings
  • Extensive control options allow you to tailor PowerMTA to your specific needs.
  • A command-line management tool is provided.

Authentication/Accreditation Tools — PowerMTA has built-in support for:

  • Domain Keys and DKIM (including multiple DKIM signatures)
  • SenderID and SPF
  • “Guaranteed Authentic” mode

Platforms & Packages — PowerMTA is delivered as downloadable software that runs on standard platforms on commodity hardware. Supported platforms include:

  • Microsoft Windows (2008/2012)
  • Linux RPM based (Red Hat, CentOS) and DEB based (Debian, Ubuntu)
  • Sun Solaris (Solaris 8 or later, SPARC)