Historically all mail transfer agents ( MTAs ) added their host name to the " reverse path ".
12.
Mailbox providers can also install mail filters in their mail transfer agents as a service to all of their customers.
13.
Typical examples are FTP ( File Transfer Protocol ), SMTP ( Simple Mail Transfer Protocol ), or the finger protocol.
14.
SMTP ( Simple Mail Transfer Protocol ) is the way your computer transmits a mail message out over the Net.
15.
The first autoresponders were created within mail transfer agents that found they could not deliver an e-mail to a given address.
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The resulting protocol was NNTP, which resembled the Simple Mail Transfer Protocol ( SMTP ) but was tailored for exchanging newsgroup articles.
17.
A mail transfer agent ( MTA ) using greylisting will " temporarily reject " any email from a sender it does not recognize.
18.
It also appears in the configuration process of sendmail ( a widespread mail transfer agent ) and for generating footprints in the gEDA toolsuite.
19.
They can also connect to POP3 and simple mail transfer protocol ( SMTP ) servers directly for e-mail with improved calendar and contact management support.
20.
It is a text-based protocol, incorporating many elements of the Hypertext Transfer Protocol ( HTTP ) and the Simple Mail Transfer Protocol ( SMTP ).
