IP addresses (with wildcards) that the associated mailproc will run for.
Bug-fix: the SMB REPLYTONETADDR header field value would be created
invalid if the sender's Reply-To header field value contained a name, like:
"Rob Swindell" <rob@someserver.com>
Raise the log level of the SMTP ALIAS log lines from info to debug.
Generate an info-level log entry when receiving message text.