What is incoming and outgoing mail server and server port number

These specifications that allow you to send and receive messages on your iPhone. If you are using iCloud Mail, Gmail, or another service listed in the selector in settings, they should be automatically configured. If not, you may need to look up certain numbers for your email service.

papan_r wrote:

What is incoming and outgoing mail server and server port number

For which email system?

The incoming mail server is where your mail app gets its mail from.

The outgoing mail server is where sent mails are sent, this server will then pass it on through several mail servers until it ends up at the incoming mail server of the the person it was sent to.

Certain services (web browsing, getting mail, sending mail, ...) are typically tied to specific port number used by your computer, this helpful if one wants to block specific services using a firewall.

See applenerd504 previous reply:

These specifications that allow you to send and receive messages on your iPhone. If you are using iCloud Mail, Gmail, or another service listed in the selector in settings, they should be automatically configured. If not, you may need to look up certain numbers for your email service.

Putting it in slightly different terms:

• If you are using a web-mail system like gmail (with a gmail email address) all the mail sending, receiving and management is done on Google servers. In these cases you will only need to have a working internet connection to be able to log in to the service to access its data.
• Supplying mail sever names and port numbers should only be needed if you are using a traditional (non-web) email account where you are accessing the mail servers directly. This would be typical for a email account set up by someone like your ISP (Internet Service Provider), in these cases you will have to ask them for the appropriate settings.