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On Mon, Sep 05, 2011 at 04:48:31PM +0100, Matt Harrison wrote: |
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> I've got an odd problem and I really can't work out what is causing it. I have two |
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> gentoo mailservers under my control, one is working fine (it seems) but the other is |
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> just not getting mail out. I'm not even sure if this will be delivered until I see it |
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> come back through the list. |
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> |
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> According to my logs, the mails are being accepted without issue by the receiving MX, |
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> but that is the last that will be seen of them. It's not happening for every mail, but |
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> a lot. Recipients can be on BT Internet, gmail, or other (apparently) unrelated |
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> providers. |
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> |
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> All outgoing mail from this server is DKIM signed, in plaintext only. I've checked and |
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> the IP of the server doesn't seem to be on any blacklists. There is correct reverse |
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> dns for the server as well. I've owned the IP for around 7-8 years now and there's |
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> never been a problem like this. |
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> |
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> I've been scratching my head over this for a while now but haven't made any progress, |
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> in fact it seems to be getting worse. A few days ago I found a free service |
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> (unfortunately forgotten the name now) which will recieve an email from you and reply |
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> with a complete breakdown of apparent authenticity, signing, spam score etc etc. It |
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> was absolutely perfect for my test. |
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> |
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> Both servers are running the current stable postfix and amavisd/clamav/spamassassin. |
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> |
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> It looks to my uneducated brain that servers are accepting my mail and then silently |
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> dropping it without telling me why. Some of the intended recipients have checked their |
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> various spam folders and such but nothing shows up there either. |
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> |
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> If anyone can shed some light on this I would be incredibly grateful, I'm having to |
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> send quotes out through the post at the moment just to be sure they arrive :( |
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Well that one got through which is nice, and I just noticed that my servers time was |
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just over an hour off, even though ntp-client was running. Only noticed this thanks to |
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the threading in this list. My every day stuff doesn't get threaded (or posted back to |
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me) so I hadn't seen it before. |
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|
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I've corrected the time and sent a couple of tests to previously not working addresses |
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and I'll see what happens. |
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Just a thought though, if for example, BT Internet was reject mail based on my clock |
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being so wrong, they'd do it for every customer...and they haven't. I don't know, I'm |
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out of ideas and pretty desperate now. |
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|
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Thanks |
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|
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Matt |