How do I find out the SMTP of my email provider?

[BlackAsLight]

If I wanted to use other email providers, how would I find out their smtp for it? I know in the docs it lists googles as smtp.google.com, but how would I know what mine would be if I wanted to use another provider?

[paolobarbolini]

Usually searching for something like the provider's name and smtp finds you either an official website or a third party website with the provider's SMTP parameters