What port to use for outgoing mail server

The port number to use for outgoing mail (SMTP) depends on the mail server and the configuration. Here are some common port numbers used for outgoing mail:

1. Port 25: This is the traditional port number for SMTP, but it's often blocked by ISPs and firewalls due to spam concerns.
2. Port 587: This is a more modern port number for SMTP, which is often used for sending email from a mail client or webmail service. Port 587 is usually unblocked by ISPs and firewalls.
3. Port 2525: This port number is sometimes used for SMTP, especially for older email clients or servers that don't support Port 587.

When setting up an outgoing mail server, you'll need to specify the correct port number. Here are some common scenarios:

• Gmail: Use Port 587 (or Port 25 if you're using a Gmail app or plugin).
• Outlook.com: Use Port 587 (or Port 25 if you're using an Outlook app or plugin).
• Yahoo Mail: Use Port 587 (or Port 25 if you're using a Yahoo Mail app or plugin).
• Custom mail server: Check your mail server's documentation or contact your system administrator to determine the correct port number.

Remember to also specify the correct mail server hostname or IP address, as well as your email address and password, when setting up your outgoing mail server.