[Mimedefang] SMTP

[Christopher Roberts]

I am having problems emailing one particular company. Unfortunately that
company happens to be our bank! The logs show lots of these:

May  9 16:33:57 debian sm-mta[4054]: j49BZpii031004:
to=<ADDRESSREMOVED at barclayscorporate.com>, delay=03:58:05,
xdelay=00:00:00, mailer=esmtp, pri=2280909,
relay=mailgate02.barclays.co.uk. [62.189.96.212], dsn=4.0.0,
stat=Deferred: 421 4.0.0 mailgate02.barclays.co.uk Server error

Error messages seem to alternative between mailgate01.barclays.co.uk and
mailgate02.barclays.co.uk.

Barclays IT have very helpfully suggested that I should delete the
Outlook contact and recreate it. Hmm. Needless to say we aren't having
problems sending to anyone else.

Our set-up is as follows:

Debian Sendmail 8.12.3-6.4

Mimedefang.pl -features:

MIMEDefang version 2.32

File::Scan                    : yes
HTML::Parser                  : yes
HTML::TokeParser              : yes
HTMLCleaner                   : yes
Path:CONFDIR                  : yes (/etc)
Path:QUARANTINEDIR            : yes (/var/spool/MIMEDefang)
Path:SENDMAIL                 : yes (/usr/sbin/sendmail)
Path:SPOOLDIR                 : yes (/var/spool/MIMEDefang)
SpamAssassin                  : yes
Virus:CLAMAV                  : yes (/usr/bin/clamscan)
Virus:CLAMD                   : yes (/usr/sbin/clamd)
Virus:FileScan                : yes
Unix::Syslog                  : no
IO::Socket                    : Version 1.27
MIME::Tools                   : Version 5.411
MIME::Words                   : Version 5.404
Digest::SHA1                  : Version 2.01
Mail::SpamAssassin            : Version 2.55
Anomy::HTMLCleaner            : Version 1.21
File::Scan                    : Version 1.43
HTML::Parser                  : Version 3.26
HTML::TokeParser              : Version 2.24
Unix::Syslog                  : Version 0.100

Any pointers gratefully received!

Many thanks!

Chris Roberts