Channel Port Numbers
====================

Some types of channels require a host and port number. These details should be provided to you by the server administrator. If no port number is provided to you, most likely the **default** port is being used. The most common default port numbers are listed below.

.. csv-table::
    :header: "Channel Type", "Port number"

    "smtp", "25"
    "smtps", "587"
    "smtpstarttls", "587"
    "pop3", "110"
    "pop3s", "995"
    "pop3apop", "110"
    "imap4", "143"
    "imap4s", "993"
    "ftp", "21"
    "ftps", "21"
    "sftp", "22"