libSmtpThread is a multi-threaded C++ library for
sending mail via SMTP. The library provides a
connection pool that initializes a set of threaded
SMTP connections. Emails can be pushed into the
pool, which accepts all mail and delivers them to
a free connection. The delivery to the SMTP server
is processed in a separate thread, so you don't
have to wait for mail to be accepted. It has been
successfully tested with Postfix.
