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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
    So, for example, in order for a company with an Astaro to NOT have its mail blocked for the same reason:

    If the public Authoritative Name Server for your domain lists an MX record of mail.yourdomain.com,
    and, if mail.yourdomain.com resolves to the IP on your Astaro, e.g., 68.78.88.98,
    then there needs to be a reverse DNS entry:

    98.88.78.68.in-addr.arpa   IN   PTR   mail.yourdomain.com


    Cheers  - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson
    ths is mail coming into our ASG. Here is another one that I think has RDNS, but im not sure why it got blocked.


    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 H=(sgsymc11.statschippac.com) [203.222.42.147]:60800 Warning: as.omgi.com profile excludes greylisting: Skipping greylisting for this message
    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 id="1003" severity="info" sys="SecureMail" sub="smtp" name="email rejected" srcip="203.222.42.147" from="Eric.WONG%40statschippac.com" to="gen.tan%40as.omgi.com" size="-1" reason="rdns_helo" extra="RDNS missing"
    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 H=(sgsymc11.statschippac.com) [203.222.42.147]:60800 F= rejected RCPT : No RDNS entry for 203.222.42.147
    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 SMTP connection from (sgsymc11.statschippac.com) [203.222.42.147]:60800 closed by DROP in ACL
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  • 0 in reply to BAlfson
    ths is mail coming into our ASG. Here is another one that I think has RDNS, but im not sure why it got blocked.


    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 H=(sgsymc11.statschippac.com) [203.222.42.147]:60800 Warning: as.omgi.com profile excludes greylisting: Skipping greylisting for this message
    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 id="1003" severity="info" sys="SecureMail" sub="smtp" name="email rejected" srcip="203.222.42.147" from="Eric.WONG%40statschippac.com" to="gen.tan%40as.omgi.com" size="-1" reason="rdns_helo" extra="RDNS missing"
    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 H=(sgsymc11.statschippac.com) [203.222.42.147]:60800 F= rejected RCPT : No RDNS entry for 203.222.42.147
    2010:04:19-00:05:23 smtp1-2 exim[16511]: 2010-04-19 00:05:23 SMTP connection from (sgsymc11.statschippac.com) [203.222.42.147]:60800 closed by DROP in ACL
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