- Plesk for Linux
Qmail and Dovecot are installed
Errors executing redirecting or sending a copy of a message through Sieve rules set in Webmail can be seen in
CONFIG_TEXT: sieve: info: started log at Jun 17 10:42:58.
error: msgid=<CAGnm7qC+qHvm2fNS6dLUkDjkEm7=y6DXOtzMSfr7M36SYHp4gg@mail.source.com>: failed to redirect message to <firstname.lastname@example.org>: Failed to execute sendmail (temporary failure).
Bug in the product with ID #PPPM-9240 which will be fixed in future Plesk updates.
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As a workaround, disable the Sieve rule or switch from Qmail to Postfix as explained here: How to install/change a local mail server in Plesk for Linux