What is SMTP ? SMTP is stand for simple mail transfer protocol
SMTP stands for Simple Mail Transfer Protocol. POP and IMAP are protocols that can retrieve mail from a mail server, while SMTP is a protocol that can send mail to a mail server. More specifically.
the SMTP protocol is used to send e-mail messages from an e-mail client to the e-mail server of an e-mail provider or to send e-mail messages between two e-mail servers on the Internet
If you are using a free email provider, your email address uses the domain name, which allows the provider to use an email server.
When you read or send mail using a web mail site, the mail server settings for sending incoming and outgoing mail are processed.
However, if you are using a local mail client such as MS Outlook, Apple Mail or Mozilla Thunderbird, you must enter the incoming and outgoing mail server settings from your mail provider when you configure the client..
The incoming server settings tell the mail client where to retrieve mail, and the outgoing mail server settings tell the mail client where to send mail. The configuration of the outgoing server is also called configuration of the SMTP server.
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linux smtp server