SMTP standards for Simple Mail Transfer Protocol, the protocol for sending email messages between servers.
Most email systems that send mail over the Internet use SMTP to send messages from one server to another, and the messages can then be retrieved using an email client with an email download protocol, such as POP3 or IMAP.
SMTP is also generally used to send messages from a mail client to a mail server. This is why you need to specify both the incoming mail server (POP3 or IMAP) and the outgoing mail server (SMTP) when you configure your email application.
SMTP operates on both port 25 and 587, as some ISPs block port 25. Our SMTP servers do require authentication through SMTP AUTH, and do not support SSL/TLS.
Your outgoing SMTP server is:
mail.your-domain.com
your-domain.com is the domain name that you have a mailbox on. If your email address is bob@bobson.com, your SMTP server will be mail.bobson.com.
To use the SMTP server, you will also need to tell your email client that the outgoing mail server requires authentication.
You may need to specify the username and password for this authentication – simply enter the same username and login as you use for your incoming mail.
Encryption such as SSL or TLS will also need to be disabled in order to connect successfully.
Article ID: 571
Created On: Tue, Mar 31, 2015 at 4:56 PM
Last Updated On: Fri, Jul 31, 2015 at 2:39 PM
Online URL: https://www.heartinternet.uk/support/article/what-is-smtp.html