Michelle Konzack writes:

Since Bug# are autogenerated by the BTS software, spamer could push  any
Bug# into my BTS, I like to install  some  software/script  or  whatever
which block numbers which do not exist in the BTS.

Is this possibel with courier-mta?

E-Mail examples are:    [EMAIL PROTECTED]
                 or:    [EMAIL PROTECTED]

Rejects should be done on  SMTP  level  and  the  highest  Bug#  can  be
provided by a config file containing only the last number.

Well, it's possible, but it's going to be rather difficult to implement. This needs to be done using the combination of a -default .courier files, and localmailfilter API, which will validate the recipient's address using a maildrop recipe. Normally, localmailfilter maildrop recipes are restricted to a subset of available maildrop commands, which exclude invoking external programs. So, another maildrop hook needs to be used that breaks out of the maildrop jail. It's all documented, but is a fair amount of reading, across a bunch of manpages.

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