Outbound whitelisted email flagged as spam with multiple recipients

[hahosting]

Hi there,

We're having a problem with EFA identifying outbound email as spam, even though the internal mail server and the sender domain are both whitelisted.

The internal server is whitelisted from the IP to "default", and the sender is whitelisted to "default".

If the sender sends an email to a one or a handful of recipients, EFA lets the mail through, with a green W/L on the status page. However if the sender sends an email to many recipients (87 in this case for his newsletter), the whitelisting is ignored, the message identified as spam, and the BCC'd recipients all get a "release from quarantine" email.

The problem seems similar to what solarthread was having in this post: viewtopic.php?t=982

Just to clarify, EFA is the outbound smarthost of the mail server, the server is whitelisted, the sender is whitelisted. The spam classification only seems to happen when the sender sends out an email to multiple recipients.

Any ideas??

Cheers,
Stuart.

[hahosting]

I might have answered my own problem....

within /etc/MailScanner/MailScanner.conf I found the following line:
"Ignore Spam Whitelist If Recipients Exceed = 20"

Which seems to be my issue exactly. I've upped the limit to 100, restarted MailScanner, and verified the change from the EFA web interface at mailscanner/msconfig.php

Hopefully this might help someone else!

Cheers,
Stuart.