On Fri, 28 Nov 2008, Dallman Ross wrote:
On Fri, Nov 28, 2008 at 02:14:38AM -0500, Fleet Teachout wrote:
I'm trying to use procmail to do the host lookup so I
can see the "Remote Name." So far I have:
I already know it will be empty as to XXX. You are using wrong
syntax. Suggest you do a quick review of the man page.
| Starts the specified program, possibly in $SHELL if any of the
characters $SHELLMETAS are spotted. You can optionally prepend
this pipe symbol with variable=, which will cause stdout of the
program to be captured in the environment variable (procmail
will not terminate processing the rcfile at this point).
Try
XXX=| host "$MATCH" | cut -d' ' -f5
And you would not need the c-flag at the start of the recipe.
Hmmmm. I read that; wasn't sure how to go about it. And I couldn't find
anything like what I wanted in 'man procmailex.'
Thanks.
However, there is a serious bug in many procmail binaries making
the above syntax unsafe. Random memory will be eaten unless you
have applied a patch. So the alternative below is recommended:
Thanks for the heads up.
:0
* conditions
{ XXX = `shell command` }
(You don't need the c-flag there, either. Nested brace sets
are not delivering recipes, and the assignment therein is also
not a delivering action.)
I believe the latter is what you were attempting all along anyway.
I believe it is.
By the way, can't you just turn on the reverse-lookup feature in
your SMTP host's setup?
I don't know. I get my mail through my leased server; so I don't think my
SMTP host really sees it until after the fact (during mail downloads).
Thank you Dallman! I'll play with the above.
- fleet -
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