I recently installed Anomy to replace John Hardin's procmail
tools on the mailserver for an academic research dept. We have
about 300 users and receive about 2000 messages/day. We run
sendmail 8.9 on Solaris 2.6 (and, yes, we are moving to 8.11 on Sol 8).
While I'm very pleased with the design and execution of anomy,
there are a few hiccups and suggestions I thought I'd share.
1) /etc/procmailrc failed until I added:
2) I think the stderr logging would be more useful if Time-date,
sender and recipient were included.
3) Attachments that have NO extension get defanged, which completely
hosed our Mac clients until I caught it. Macs were particularly
problematic because Eudora (at least) sends the resource fork
and data fork as separate attachments (e.g, '%test' and 'test').
It seems that once these got renamed ('%test.DEFANGED-001',
'test.DEFANGED-002') the clients couldn't do anything with them.
4) 'DEFANGED-nnnn' isn't, by default, an accepted extension, so
as a message got bounced around it would become
5) Shell script defanging also resulted in a cascade of
echo DEFANGED; exit; commands it forwarded multiple times.
Would it be sufficient to prepend a '%' or someother
character to the shebang., e.g.
6) I'm surprised that " " (space) is converted to _. I didn't
know that it was a 'scary character'. I'm curious as to the
reason for that.
That's about it. Hate to sound like I'm carping -- rather,
I think that Anomy is so excellent that it should be made as
good as it can be.
I've included some of my config file for dealing with
points 3 and 4 above.
-- from /etc/anomy.cfg --
# RULES to accept .DEFANGED-nnnnn extensions
# We use ruleset 4, since default rulesets 1-3 in
# bin/sanitizer.pl are okay:
# expand list of file rules to five:
# now, define the rule, and the policy
file_list_4 = (?i)\.defanged-\d+$
file_list_4_policy = accept
file_list_4_scanner = 0
# RULE to accept extensionless filenames
file_list_5_policy = accept
file_list_5_scanner = 0
file_list_5 = ^[^\.]*$
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