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On Fri, 2004-05-28 at 16:36, Ben Munat wrote: |
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> I also followed Eric's advice, emerged tcpdump and watched port 25 while |
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> I tried both an address in rcpthosts and one that's not. In the former, |
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> tcpdump spits out all the data from the successful mail transaction. In |
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> the latter... nothing. I would guess that that's because there's no tcp |
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> traffic to port 25 if the attempt is denied. Hmmm, although qmail is |
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> responding with the 553, so that would seem to suggest that an smtp |
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> connection is being made. Not sure why I get no output in that case. |
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> Tried taking the port 25 restriction out, but the output is overwhelming. |
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If your mail sending module is has a "smart host" or "relay host" |
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setting (almost certainly), and you have this set to localhost, then you |
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need to specify the loopback interface to tcpdump. By default, tcpdump |
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will listen to eth0, and you won't see anything on lo. |
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-- |
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Andy Dustman <adustman@×××××××××.edu> |
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Office of Information Technology, Terry College of Business, UGA |
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Computer interfaces should never be made of meat. |
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