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.

Outgoing SMTP Email Services for Mobile Users

outMail is an outgoing SMTP email service for use on your mobile and portable devices. Using either a WiFi connection or your mobile data Internet connection outMail will allow you to send emails from your own email address or domain name in any location. outMail will work with any email application as long as it supports authenticated SMTP.

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

Some Internet service providers will only let you send emails from their own email addresses.  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.

Support for all major mobile and portable devices

  • iPhone & iPad OS.
  • Android OS
  • Windows Mobile.
  • and many more.


  • Instant account creation - start sending emails instantly after signing up.
  • Send emails from your mobile - Supports iPhone, Android, Smart Phones and Windows Mobile.
  • Send emails from your pad - Supports iPad and Android.
  • 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 avoid 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).


Choose the best package that suites your requirements.

Package Plan

Daily message limit

Cost per month


Outmail 10


£0.00 (FREE)

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Outmail 100



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Outmail 200



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Outmail 300



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Outmail 500



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Outmail 1000



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Outmail 2000



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Outmail 10000



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Prices exclude VAT

The table above shows the different outMail packages that are available based on the number of emails you need to send.


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



 ApplicationKnowledge Base Article

Apple iPhone

iPhone Setup guide

Apple iPad

iPad Setup guide


Andriod Setup guide

Windows Mobile

Microsoft Windows Mobile Setup guide


outMail is an outgoing SMTP service. Remember when setting up outMail on your mobile email application to modify the outbound SMTP Server settings, and to leave the inbound (POP3 or IMAP) settings as is. outMail is for outgoing emails only and doesn't change how your inbound emails are delivered or stored.

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