Since a recent update from Sophos, mails coming from SQL-Ledger are
marked as spam and blocked by Sophos Email Security and Data Protection
systems. The reason is that SQL-Ledger builds message id and boundary in
the following way:
boundary = "SL-" + version + timestamp
message id = boundary + "@" + domain
Sophos no longer accepts such a message id as "globally unique" as
required by RFC 2392. This is a narrow interpretation of what is
described very vaguely in the RFC. Marcus Schopen from University of
Bielefeld suggests to contruct boundary and message id like this:
boundary = "SL-" + version + timestamp
message id = timestamp + "@" + domain
and to change SL/Mailer.pm lines 27...:
my $boundary = time;
my $domain = $self->{from};
$domain =~ s/(.*?\@|>)//g;
my $msgid = "$boundary\@$domain";
$boundary = "SL-$self->{version}-$boundary";
We have tested this code with success.
I will update my SQL-Leger repository on Github in this way and
recommend to Armaghan to do the same with Ledger123.
Regards
Rolf
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