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Technical features

This article details the technical characteristics of the SMTP service.

Proposed ports

Accounts on are available through the following ports:

  • Normal mode or TLS: 587, 25, 5521, 5525, 7721 and 7725
  • SSL mode: 465 and 5555

If your ISP blocks port 25, you can use one of the other proposed ports.

TLS (recommended) and SSL modes are encrypted modes of communication between your email client and your SMTP account.

Size of attachments

The maximum size of messages sent is limited to 50MB (about 30MB usable, as encoding attachments in an email increases their size by about 50).
Be careful though, most couriers do not accept such a size in reception.

compatibility is compatible with (non-exhaustive list):
· Windows, Mac, Linux, Windows Mobile operating systems…
· PC, Mac, Linux and Pocketpc, Ssmartphone, IPhone or Ipod Touch devices.
· Messaging software offering the use of a SMTP server with authentication (Windows Mail, Outlook all versions, Apple Mail, Thunderbird, Eudora, …)
· Any Internet connection that allows you to issue SMTP queries on any of the ports listed above

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