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Re: yahoo sending to me is timing out

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  • Jeroen Geilman
    ... And what have you configured that produces this message ? ... Disable TCP windowing; there was a thread on this list not 3 days ago detailing how it can
    Message 1 of 2 , Jun 3, 2011
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      On 06/04/2011 02:59 AM, Eric Smith wrote:
      > Hello postfix world,
      >
      > I seem to be receiving all of my emails excepting some from people who
      > have emails with yahoo email acounts.They are either taking up to 20 hours
      > in yahoo's queue or being returned.
      >
      > The postfix is a spam filter (amavis/clamscan/SA) for an exchange forest
      > of 55 users, not many, so not much of a load. I am not getting any reports
      > from other legitimate domains sending us emails having this issue. I have
      > tried a bunch of things found on the internet, but the errors still exist.
      > This was not a problem on my prior filter build on postfix 2.2.10. I had
      > generally ignored such errors as my thinking was that these were caused by
      > poorly designed bots, that may be a mistaken assumption with this more
      > current postfix. I am thinking that there is more controls that I might be
      > missing. So please find below an error from a client at yahoo, examples or
      > the errors in postfix logs and my postfix -n output.
      >
      > Thank you for any help or insights that you may have!
      >
      > Eric
      >
      >
      >
      >
      >
      > Client errors are like this,
      >
      > Sorry, we were unable to deliver your message to the following address.
      > Message expired for domain techsoft3d.com<http://techsoft3d.com/>
      >

      And what have you configured that produces this message ?


      >
      > Getting these sorts of errors from yahoo on my postfix 2.8.1 server,
      >
      > Jun 3 17:32:02 loki postfix/smtpd[2579]: connect from
      > nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]
      > Jun 3 17:32:02 loki postfix/smtpd[2579]: C012C640593:
      > client=nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]
      > Jun 3 17:32:02 loki postfix/smtpd[2579]: lost connection after RCPT from
      > nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]
      > Jun 3 17:32:02 loki postfix/smtpd[2579]: disconnect from
      > nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]
      >

      > tcp_windowsize = 256


      Disable TCP windowing; there was a thread on this list not 3 days ago
      detailing how it can cause hard-to-find network issues.


      --

      J.
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