SMTP
Simple Mail Transport Protocol. This is how E-MAIL is transferred on the Internet.
Wikipedia:SMTP∞ states:
It is a client-server protocol, where the client transmits an email message to the server. Either an end-user's email client, a.k.a. MUA (Mail User Agent), or a relaying server's MTA (Mail Transfer Agents) can act as an SMTP client.
The following diagram is inspired by the
Linux Electronic Mail Administrator HOWTO∞:
+---------+ +-------+
| sending | calls |sending|
| MUA |--------->| MTA |::::>::::
| | | | :: on the
+---------+ +-------+ :: sending
:: machine
............................................................
SMTP ::
::::::::::::::::::::::<:::::::::::::::
::
:: +---------+ +---------+
:: | relaying| SMTP |receiving|
::::>| MTA |::::::::>| MTA |
| | | |
+---------+ +---------+
SMTP connections are used by email client applications to transfer the message to the internet for delivery.
SpamCop Email service does not support remote SMTP connections but does support remote authenticated SMTP connections as part of the standard package. see
SMTP-AUTH.
SMTP-AUTH extends the protocol by including an authentication process.
CategorySpamCopGlossaryWikiS
CategorySpamCopMailService
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