• David Price
    Thank you, thank you, thank you.  Suddenly found myself unable to send emails whilst on holiday in South Africa.  Was told to look up @Prolateral and use their outbound SMTP service.  Few minutes later I was back up and sending emails again.  The service worked so well whilst I was away I decided to upgrade from the FREE service to outMail 100.  Keep up the good work guys. David Price, York, Yorkshire, UK

Outgoing SMTP Email Service for Mail Server Administrators

outMail is an outgoing SMTP email relay service also known as "smart host" for use on your email servers.  outMail supports and works with the major email server solutions. Using outMail means you can continue to send emails hassle free with many more advantages than just using your Internet Service Providers server.

Send emails from your Internet connection using any email address or your domain name

Some Internet service providers will only let you send emails from their own email addresses or charge you a premium for using your own domain name.  With outMail you can send emails from your own domain name and other email address.  outMail also supports alternative TCPIP ports for SMTP (typically SMTP port 25) incase your ISP is blocking the port.

Avoid your emails being blacklisted

Some ISPs outgoing mail servers may become blacklisted.  We have a stricked acceptable user policy and we constantly monitor our systems and third party blacklists to help ensure our servers remain unlisted.

Support for all major mobile and portable devices

  • Microsoft Windows Server - SMTP Server
  • Microsoft Exchange
  • Unix Postfix
  • Unix SendMail
  • IBM Lotus Domino
  • Novell GroupWise
  • Mercury Mail
  • and many more.


  • Instant account creation - start sending emails instantly after signing up.
  • Send emails from any address - no limit on send from email addresses or domains.
  • Send emails from any location - ideal for home, office, and mobile users and devices.
  • Mail Relay Outbound Service - SMTP Authenticated Internet Mail Relay.
  • Standard SMTP ports - SMTP port 25 supported.
  • Alternative SMTP ports - additional SMTP TCP ports available to void your ISP blocking standard SMTP port.
  • SMTP Based Authentication - allows sending emails securely via authentication.
  • Daily quota limits - based on package.
  • Flexible quota burst - allowing for the days you need to exceed your quota (Quota explained here).
  • Reports - Online reports with exporting tools.


Choose the best package that suites your requirements.

Package Plan

Daily message limit

Cost per month


Outmail 10


£0.00 (FREE)

Signup for OutMail 10 FREEGet more information on outMail10

Outmail 100



Buy OutMail 100Get more information on outMail100

Outmail 200



Buy OutMail 200Get more information on outMail200

Outmail 300



Buy OutMail 300Get more information on outMail300

Outmail 500



Buy OutMail 500Get more information on outMail500

Outmail 1000



Buy OutMail 1000Get more information on outMail1000

Outmail 2000



Buy OutMail 2000Get more information on outMail2000

Outmail 10000



Buy OutMail 10000Get more information on outMail 10000

Prices exclude VAT


Complete how to guides with step-by-step instructions on how to configure your client mail application are here



 ApplicationKnowledge Base Article

MS Exchange 2000

Microsoft Exchange 2000Setup guide

MS Exchange 2003

Microsoft Exchange 2003Setup guide

MS Exchange 2007

Microsoft Exchange 2007Setup guide

MS Exchange 2010

Microsoft Exchange 2010Setup guide

Novell Groupwise

Novell GroupWiseSetup guide


PostfixSetup guide