Discover the Allowed Ports for Messaging

This guide explains what the protocols and ports that can be used with Infomaniak's email services (Mail Service in particular).

Prerequisites

It is imperative to use only the server name mail.infomaniak.com when prompted during the configuration of any email software or application, for the incoming and outgoing mail settings.

If you specify another server name, mail errors may occur.

Recommended Ports

It is recommended to use only the following protocols and port numbers when prompted during the configuration of any email software or application:

• port 993 (secure port for receiving messages via IMAPs - incoming mail)
• port 465 (secure port for sending messages via SMTPs - outgoing mail)

It is imperative to enable SSL/TLS authentication when prompted during the configuration of any email software or application, for the incoming and outgoing mail settings.

Without authentication enabled, mail errors may occur.

Other Supported Protocols

• port 143 (standard port for receiving messages via IMAP)
• port 110 (standard port for receiving messages via POP3)
• port 995 (secure port for receiving messages via POP3s)
• port 587 (non-recommended alternative port for sending messages via SMTP)
• TLS authentication on SMTP ports 587 and 25 (not recommended)
• STARTTLS authentication for IMAP, POP3, and SMTP
• SMTP authentication (either LOGIN or PLAIN)

The Infomaniak API does not provide any email connection as IMAP and SMTP are the "APIs"; for this purpose, use a Python library like https://docs.python.org/3/library/email.examples.html and https://docs.python.org/3/library/imaplib.html or any library using IMAP and SMTP.

To display emails from PHP:
imap_open("{mail.infomaniak.com:993/imap/ssl}", $email, $password);