msmtp 1.8.21 is released

2022-08-07

Changes in this release:

A new configuration command eval replaces the current configuration file line with the output of a command (similar to passwordeval, but more general).
A Message-ID header is now generated if none is present in the mail. This can be changed with the new command set_msgid_header.
The optional msmtpd service now adds a Received header.

Furthermore, a few minor problems were corrected and the documentation and translations were updated.