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libesmtp (lib)

Library: A Library for Posting Electronic Mail (Verifiziert)

Version: 0.1.0 Status: testing Release Datum: 2015-10-20
Autor: Tom Schulz, tom_strike(at)gmx(dot)de

libESMTP is an SMTP client which manages posting (or submission of)
electronic mail via a preconfigured Mail Transport Agent (MTA). It may
be used as part of a Mail User Agent (MUA) or other program that must
be able to post electronic mail where mail functionality may not be that
program's primary purpose.

The availability of a reliable, lightweight and thread-safe SMTP client
eases the task of coding for software authors thus improving the quality
of the resulting code.


libESMTP supports many SMTP extensions, notably PIPELINING (RFC 2920),
DSN (RFC 1891) and SASL authentication (RFC 2554).

libESMTP is efficient. Because it buffers all network traffic, when used
in conjunction with a pipelining SMTP server libESMTP significantly
increases network performance, especially on slow connections or those
with high latency. Even without a pipelining server libESMTP offers much
better performance than would be expected with a simple client.

libESMTP is not intended for use as part of a program that implements a
Mail Transport Agent. This is not because the code is unsuitable for use
in an MTA, in fact the protocol engine is significantly better than those
in many MTAs. Rather, by eliminating the need for MX lookup and next-hop
determination, the design of libESMTP is simplified; thus goals are made
achievable. Besides, such features are undesirable in a program that is
not an MTA, particularly if the client is behind a firewall which blocks
access to port 25 on the Internet.


libESMTP's principal author is Brian Stafford who may be contacted at

Based on libesmtp-1.0.6.

SHA1-Prüfsumme: 96bfc750aa04a5d92bcb9e47293fce74dc5860f7
Größe: 167.24 KByte
Benötigte Pakete: base 2.6.1
Benötigte Libraries: libssl 2.6.3