Prolateral Consulting Ltd
Prolateral Consulting Ltd
SMTP SmartHost
Mail Relay
outgoing SMTP

Prolateral offers primary and backup domain (DNS) services, with servers in key geographic locations providing the best service possible.

CostSign up now for a FREE email relay

£0.00 per month.

Yes! it's completely FREE because we provide outMail10 as a tester, a trial before upgrading to a larger outMail service. There is no time limit on using the outMail10 service, and no obligation to purchase a larger outMail service. If outMail10 meets your requirements as a free SMTP relay; then please carry on using the service, maybe you can tell a friend or two and share the #HappyEmailing goodness.


  • Send up to 10 emails per day, whatever your location
  • Use any email client (Outlook, Thunderbird, PDA, iPhone) or webmail service
  • outMail is an outgoing SMTP Email relay service
  • Instant setup
  • No setup fees
  • Detailed usage graphs
  • Complete log files
  • Report Export features
  • Emails are tagged with an outMail banner in the SMTP Headers


To order outMail10 click here.

Prices exclude VAT


For all outMail services the setup instructions can be found in the knowledgebase articles and how to guides. For each KB article you will also find uninstall/removal instructions in case you no longer wish to use outMail10, or trial it. If you decide to upgrade to a larger service then is can be done in the secure clients area. When you upgrade or downgrade a service the outMail SMTP credentials stay the same, so there's no need for reconfiguration.

Additional services


Are you plagued by unsolicited junk email? Then profilter is the answer for you.

Domain hosting

Do you need primary (master) and/or secondary (slave) domain name servers. Prolateral's domain hosting solution can give you simple peace of mind with a backup/secondary DNS service or complete control over your domain as a primary master zone.

Web hosting

Web hosting from Prolateral is the easy way to get your website online. Great value UK web hosting with advanced features.


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