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Old 12-18-2008, 11:38 AM   #1
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Postfix regexp header_checks issue

I'm running postfix 2.5.1 on ubuntu server 8.04.

I use the header_checks file with regex to try and block common spam headers, etc.

everything was working fine until a few days ago (not sure exactly when), for no apparent reason, whenever i would try to rebuild the header_checks file, it would give me an error message stating

Failed to regenerate table /etc/postfix/header_checks: postmap: fatal: dict_mkmap_func: unsupported dictionary type: regexp: Is the postfix-regexp package installed?

I checked postconf -m which yielded

$ postconf -m
the strange thing is that any new regexp that i add is effectively blocked, so postfix is obviously successfully rebuilding the table. I am a little concerned, though, that this is a more fundamental problem that will get worse.

any help would be greatly appreciated.

Old 12-22-2008, 10:24 AM   #2
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so I haven't gotten any help here, so i've been trying to retrace my steps to figure out what i changed on the server that might be causing this error.

I set up a brand new server with the latest version of Postfix and restored the exact same configuration files. applying the exact same header_checks file worked fine with no errors.

One thing i neglected to mention is that i recently upgraded from webmin 1.430 to webmin 1.441. so on this new server, after everything was up and running fine with no errors i installed webmin 1.441 and presto - the error started again.

So now I'm wondering if anyone has any idea what might be causing this and what my options are. I guess i'll try and figure out how to downgrade to a previous version of webmin to see if that would work, but I'm open to suggestions as to how to proceed.



Last edited by shudini; 12-22-2008 at 10:43 AM.
Old 12-22-2008, 10:46 AM   #3
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Successfully downgraded to Webmin 1.430 and the problem has gone away.

i hope this helps someone else out in the future.
Old 06-06-2009, 09:17 PM   #4
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Upgrade webmin to the latest

1.470 works. I was on 1.44(I think) and it had stopped allowing changes. I upgraded 3 machines webmin to 1.470 and it fixed it on all three.
Old 06-07-2009, 02:19 PM   #5
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Thanks for the update.

I actually found it listed as a bug on webmin's forum to be corrected. I also have upgraded to 1.470 and all is working perfectly.



headers, postfix, regexp

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