About

Curious about how it works? Read on:

Why use PO25?

Running your own e-mail server is hard work - making sure it is properly secured and patched, ensuring the correct SPF records are in place etc. On top of that, you must monitor all system metrics to ensure everything is functioning properly. All this is taken care of for you by PO25.

Deploying PO25 also means you no longer have to worry about:

  • If a compromised system under your control is sending malicious e-mail, damaging your domain & ip reputation
  • Whether your server has ended up on a blacklist somewhere and having to jump through hoops to get it un-listed
  • If configuration errors or unscheduled downtime causing bounced e-mails
  • Accountability - eliminate he said she said types of situations with a third party (PO25) that can vouch for delivery of e-mail

How does PO25 work?

At the core of PO25 is Postfix, a high-performance and extremely extensible e-mail routing platform. Running on top of Postfix is PO25's own concoction of anti-spam and anti-malware plugins, some of which have been developed internally by PO25.

Our servers receive e-mail destined for you and inspect it, all before any e-mail touches your infrastructure. If PO25 detects anything fishy, the e-mail is held from delivery.

Can PO25 filter my outgoing e-mail?

Absolutely. This is the recommend PO25 deployment configuration - all incoming AND outgoing e-mail routed through PO25 for optimal security. However, PO25 is extremely flexible. If your scenario doesn't allow for bidirectional filtering, that's fine too.

Can PO25 work alongside cloud e-mail?

Yes - PO25's detection rate of SPAM and malware is far superior to the built-in filtering provided by most popular cloud based e-mail providers. Sign up for a free trial and experience it in person!