Some ISPs block port 25 for sending email

As an anti-spam measure an increasing amount of Internet Service Providers are blocking sending from port 25 on anything except their own mailservers.

In most cases you will need to contact your Internet Service Provider and ask them for their outgoing mailserver you can use to send emails.

If there is any reason you can not use your Internet Service Provider's mailserver please contact us and let us know why.

Some known Internet Service Providers that practice this restriction for some\most of their customers are:
Smart Telecom - http://www.smarttelecom.ie/
Magnet - http://www.magnet.ie/
BE - https://www.bethere.co.uk