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SMPT log error message

James Shakour
I am seeing the following error and i'm not sure what it means...


2010:04:19-00:10:39 smtp1-1 exim[21418]: 2010-04-19 00:10:39 id="1003" severity="info" sys="SecureMail" sub="smtp" name="email rejected" srcip="123.20.53.244" from="ofl00%40wetlands-engineering.com" to="elliott%40na.omgi.com" size="-1" reason="rdns_helo" extra="RDNS missing"
2010:04:19-00:10:39 smtp1-1 exim[21418]: 2010-04-19 00:10:39 H=(EJJDUALI) [123.20.53.244]:31443 F= rejected RCPT : No RDNS entry for 123.20.53.244
2010:04:19-00:10:39 smtp1-1 exim[21418]: 2010-04-19 00:10:39 SMTP connection from (EJJDUALI) [123.20.53.244]:31443 closed by DROP in ACL


Thoughts?


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  • 0
    If your still on 7.300, your next step is to update to the most recent release version which is 7.504.  If using up2date, you'll have to update in increments until you get current.
     
    If you don't want to do that, you can create exceptions to skip rDNS checks for specific domains/senders/recipients to be granular or turn off the "Reject invalid HELO / missing RDNS" feature altogether (not recommended).
     
    What it comes down to is that rDNS problems are that almost always at the senders end (either due to recent DNS change or ISP/DNS provider misconfiguration), which you have no control over so the best you can do is to is to bypass that check.
    __________________
    ACE v8/SCA v9.3

    ...still have a v5 install disk in a box somewhere.

    http://xkcd.com
    http://www.tedgoff.com/mb
    http://www.projectcartoon.com/cartoon/1
Reply
  • 0
    If your still on 7.300, your next step is to update to the most recent release version which is 7.504.  If using up2date, you'll have to update in increments until you get current.
     
    If you don't want to do that, you can create exceptions to skip rDNS checks for specific domains/senders/recipients to be granular or turn off the "Reject invalid HELO / missing RDNS" feature altogether (not recommended).
     
    What it comes down to is that rDNS problems are that almost always at the senders end (either due to recent DNS change or ISP/DNS provider misconfiguration), which you have no control over so the best you can do is to is to bypass that check.
    __________________
    ACE v8/SCA v9.3

    ...still have a v5 install disk in a box somewhere.

    http://xkcd.com
    http://www.tedgoff.com/mb
    http://www.projectcartoon.com/cartoon/1
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