smtptools is a collection of tools to send or receive mails with the simple mail transfer protocol.
maildirblast
may be used to send some or all messages from a maildir to a preconfigured relay host or the official mail exchanger hosts of the recipient addresses. maildirblasts functions partially overlap with those of maildirsmtp from Daniel Bernsteins serialmail package.
smtpblast
sends a single message with SMTP to a configured relay host or to a MX host. It uses the qmail return codes and may be used to bypass a broken mail system or, with for example ssh port forwarding, even some firewalls.
tomaildir
is a simple tool to write a message into a maildir. It uses the qmail return codes (see the dot-qmail manual page for more information). (yes, this has nothing todo with SMTP. But i find it useful anyway)
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Here are some key features of "smtptools":
· logging (qmail-smtpd basically has no logging)
· more finegrained relay control, it's possibly to allow relaying for *.domain.example, but not for bad.domain.example. It's possible to deny delivery to certain addresses.
· built in RBL support
· check for existence of envelope sender domain.
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