How do I know what my outgoing mail server is? You need to check your email account’s SMTP (Simple Mail Transfer Protocol) settings in your email client or webmail configuration. The outgoing mail server is listed as the “SMTP server” in your account settings, and you can also identify it by viewing the email message headers of a sent email. In most cases, it looks like smtp.yourprovi... https://blog.oudel.com/how-do-i-know-what-my-outgoing-mail-server-is-best-tips/