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Email is submitted by a mail client (mail user agent, MUA) to a mail server (mail submission agent, MSA) using SMTP on TCP port 587. Most mailbox providers still allow submission on traditional port 25. The MSA delivers the mail to its mail transfer agent (MTA). Often, these two agents are instances of the same software launched with different ...
Historically, in Internet mail, both MTA and MSA functions use port number 25, but the official port for MSAs is 587. [1] The MTA accepts a user's incoming mail, while the MSA accepts a user's outgoing mail. The computer running an MSA is also known as the outgoing mail server.
SMTP AUTH can be used also on port 25. Usually, servers reject RCPT TO commands that imply relaying unless authentication credentials have been accepted. The specification recommends that servers issue 530 5.7.0 Authentication required in response to most commands in case the server is configured to require authentication and the client hasn't ...
Settings may be in a different location in each email client, though the AOL server and port settings will always be the same. For additional questions specific to the email client, check the manufacturer’s website. Manufacturers cannot answer questions about your AOL Mail settings, or your AOL username or password.
Submission of new email from a mail client is via SMTP, typically on port 587 or 465, and is now generally restricted to servers the user has an account with-such as their ISP. This is for policy, not technical, reasons so that providers have some means of holding their users accountable for the generation of spam and other forms of email abuse ...
This is a list of Simple Mail Transfer Protocol (SMTP) response status codes. Status codes are issued by a server in response to a client's request made to the server. Unless otherwise stated, all status codes described here is part of the current SMTP standard, RFC 5321. The message phrases shown are typical, but any human-readable alternative ...
SMTPS (Simple Mail Transfer Protocol Secure) is a method for securing the SMTP using transport layer security.It is intended to provide authentication of the communication partners, as well as data integrity and confidentiality.
Settings may be in a different location in each email client, though the AOL server and port settings will always be the same. For additional questions specific to the email client, check the manufacturer’s website. Manufacturers cannot answer questions about your Netscape/AOL Mail settings, or your Netscape username or password.