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I'm using postfix smtp and adding always_bcc.

always_bcc =

It's working fine without attachment. When I add attachment, auto bcc is not working and admin didn't get email.

How to fix that problem ?

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This question is a bit off topic! You should try to ask it at or – LassePoulsen Sep 1 '10 at 5:31
This question is not off-topic. It is a legitimate problem that can occur on Ubuntu servers. – txwikinger Sep 1 '10 at 16:02
Sorry, I didn't mean that this question wasn't valid here! Just that is might be more valid (or better solved by) on unix.stachexchange or serverfault. – LassePoulsen Sep 2 '10 at 10:31
This is already on ServerFault:… – Grizly Sep 3 '10 at 6:29
does this happen also when the attachment is very very small (a couple of bytes) ? – ithkuil Sep 10 '10 at 10:06

This is not answer i just trying to say a way to debug your postifx server configuration

post postconf -n

and see the postfix Troubleshooting process here

also see Postfix sends all log messages to /var/log/mail.log. However error and warning messages can sometimes get lost in the normal log output so they are also logged to /var/log/mail.err and /var/log/mail.warn respectively.

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