What ports and methods are used for receiving and sending email?

    If you have a hosting package with us that contains e-mail accounts, the following settings can be used under the respective ports:


    Configuration settings for e-mail clients


    We recommend establishing the connection with STARTTLS. All current e-mail clients support STARTTLS.

    1. SMTP
      Port: 587
      Encryption method: STARTTLS
      Authentication method: normal password
    2. IMAP
      Port: 143
      Encryption method: STARTTLS
      Authentication method: normal password
    3. POP3
      Port: 110
      Encryption method: STARTTLS
      Authentication method: normal password

    Alternative connection option with SSL / TLS

    1. SMTP
      Port: 465
      Encryption method: SSL / TLS
      Authentication method: normal password
    2. IMAPs
      Port: 993
      Encryption method: SSL / TLS
      Authentication method: normal password
    3. POP3s
      Port: 995
      Encryption method: SSL / TLS
      Authentication method: normal password

    E-mail server connection options
    The following connection options are only available for the connection between email servers.
    Some e-mail clients can also connect to these ports for backward compatibility.
    We reserve the right to deactivate this option in the future. For this reason, we recommend establishing the connection with STARTTLS.


    1. SMTP
      Port: 25
      Encryption method: none, STARTTLS
    2. SMTPs
      Port: 25
      Encryption method: SSL

    Illustration of the different connection options based on the good old postal service:
    There are two types of mailboxes there, the large yellow mailboxes on the street and the small mailboxes in the houses. Ports 25 and 465 correspond to the small mailboxes on the houses; Postmen leave letters there, but no letters are placed there for further dispatch. These belong in the large yellow mailboxes outside - this corresponds to port 587 on servers.

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