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RBL's blocking Microsoft internal and Office365 servers

SalishSwede
I'm finding that my critical contacts can't communicate with me via email due to flagging by RBL's.  After further investigation, it includes those who are using Microsoft email infrastructure: both internal employees and corporate members who have outsourced their email services to Microsoft through Live@edu other other offerings.  It's not only these folks, but blocking these people impacts me the most.


var/log/smtp/2013/12/smtp-2013-12-18.log.gz:2013:12:18-13:53:08  ravenna exim-in[23455]: 2013-12-18 13:53:08 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="74.63.194.68"  from="bounces+273298-313f-[private information]sendgrid.info"  to="doug@[private information].com" size="-1" reason="rbl"  extra="cbl.abuseat.org" [FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-03.log.gz:2014:01:03-16:10:34  ravenna exim-in[14501]: 2014-01-03 16:10:34 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="204.13.248.72"  from="" to="prvs=008145706c=[private information]" size="13915"  reason="rbl" extra="cbl.abuseat.org" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-06.log.gz:2014:01:06-10:18:04  ravenna exim-in[8293]: 2014-01-06 10:18:04 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.209"  from="susan.[private information]"  to="doug@[private information]" size="16611" reason="rbl"  extra="combined.rbl.msrbl.net" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-06.log.gz:2014:01:06-10:18:04  ravenna exim-in[8293]: 2014-01-06 10:18:04  H=mail-bl2lp0209.outbound.protection.outlook.com  (na01-bl2-obe.outbound.protection.outlook.com) [207.46.163.209]:5037  F= rejected RCPT  : 207.46.163.209 blacklisted at  combined.rbl.msrbl.net [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-08.log.gz:2014:01:08-13:31:43  ravenna exim-in[6075]: 2014-01-08 13:31:43 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.206"  from="[private information].com" to="doug@[private information]"  size="20075" reason="rbl" extra="combined.rbl.msrbl.net" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-08.log.gz:2014:01:08-13:31:43  ravenna exim-in[6075]: 2014-01-08 13:31:43  H=mail-bl2lp0206.outbound.protection.outlook.com  (na01-bl2-obe.outbound.protection.outlook.com) [207.46.163.206]:42226  F= rejected RCPT  : 207.46.163.206 blacklisted at  combined.rbl.msrbl.net [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-08.log.gz:2014:01:08-13:34:08  ravenna exim-in[6301]: 2014-01-08 13:34:08 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.149"  from="[private information].com" to="doug@[private information].com"  size="18356" reason="rbl" extra="cbl.abuseat.org" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-08.log.gz:2014:01:08-13:37:22  ravenna exim-in[6617]: 2014-01-08 13:37:22 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.242"  from="[private information].com" to="doug@[private information].com"  size="20007" reason="rbl" extra="cbl.abuseat.org" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-09.log.gz:2014:01:09-14:09:53  ravenna exim-in[14288]: 2014-01-09 14:09:53 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="204.13.248.72"  from="" to="prvs=0086cc3a24=doug@[private information].com" size="9911"  reason="rbl" extra="combined.rbl.msrbl.net" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-09.log.gz:2014:01:09-14:09:53  ravenna exim-in[14288]: 2014-01-09 14:09:53 H=mho-02-ewr.mailhop.org  [204.13.248.72]:28519 F=<> rejected RCPT  : 204.13.248.72  blacklisted at combined.rbl.msrbl.net [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-10.log.gz:2014:01:10-12:43:14  ravenna exim-in[4950]: 2014-01-10 12:43:14 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.185"  from="[private information].com" to="doug@[private information].com"  size="10951" reason="rbl" extra="combined.rbl.msrbl.net" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-10.log.gz:2014:01:10-12:43:14  ravenna exim-in[4950]: 2014-01-10 12:43:14  H=mail-bn1blp0185.outbound.protection.outlook.com  (na01-bn1-obe.outbound.protection.outlook.com) [207.46.163.185]:13940  F= rejected RCPT  : 207.46.163.185 blacklisted at  combined.rbl.msrbl.net [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-10.log.gz:2014:01:10-23:51:44  ravenna exim-in[32238]: 2014-01-10 23:51:44 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="204.13.248.72"  from="" to="prvs=0088fe969f=doug[private information].com" size="4677"  reason="rbl" extra="bl.spamcop.net" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-14.log.gz:2014:01:14-07:51:08  ravenna exim-in[14631]: 2014-01-14 07:51:08 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.154"  from="[private information]com" to="doug@[private information].com"  size="26180" reason="rbl" extra="cbl.abuseat.org" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-15.log.gz:2014:01:15-21:20:11  ravenna exim-in[10406]: 2014-01-15 21:20:11 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="157.55.133.100"  from="" to="doug[private information]com" size="10082" reason="rbl"  extra="bl.spamcop.net" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-16.log.gz:2014:01:16-12:49:00  ravenna exim-in[10423]: 2014-01-16 12:49:00 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="209.85.214.201"   from="3ukXYUhIJAEMqfgwfitwnzxmzrfszxlrfnq.htr@calendar-server.bounces.google.com"  to="doug@[private information].com" size="-1" reason="rbl"  extra="cbl.abuseat.org" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-16.log.gz:2014:01:16-12:49:18  ravenna exim-in[10446]: 2014-01-16 12:49:18 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="74.125.82.48"  from="[private information].com" to="doug@[private information].com"  size="-1" reason="rbl" extra="zen.spamhaus.org" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-16.log.gz:2014:01:16-13:00:13  ravenna exim-in[11676]: 2014-01-16 13:00:13 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="209.85.128.73"  from="3W0jYUhIJAOgVKLbKNYbSecReWKXecQWKSV.MYW@calendar-server.bounces.google.com"  to="doug@[private information].com" size="-1" reason="rbl"  extra="bl.spamcop.net" [/FONT]
[FONT=monospace]/var/log/smtp/2014/01/smtp-2014-01-16.log.gz:2014:01:16-13:06:19  ravenna exim-in[12739]: 2014-01-16 13:06:19 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="209.85.213.73"  from="3W0jYUhIJAOgVKLbKNYbSecReWKXecQWKSV.MYW@calendar-server.bounces.google.com"  to="doug@[private information].com" size="-1" reason="rbl"  extra="b.barracudacentral.org" [/FONT]
[FONT=monospace]/var/log/smtp.log:2014:01:17-12:11:36  ravenna exim-in[8201]: 2014-01-17 12:11:36 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.150"  from="[private information].com"  to="doug@[private information].com" size="32305" reason="rbl"  extra="psbl.surriel.com" [/FONT]
[FONT=monospace]/var/log/smtp.log:2014:01:17-12:14:28  ravenna exim-in[8411]: 2014-01-17 12:14:28 id="1003" severity="info"  sys="SecureMail" sub="smtp" name="email rejected" srcip="207.46.163.189"  from="[private information]com"  to="doug@[private information].com" size="32438" reason="rbl"  extra="cbl.abuseat.org" [/FONT]
Does anyone have any thoughts on best practices for RBL's or what to tell a CEO when he suggests one's email server [Sophos Gateway] is misconfigured.

Thanks,

~Doug


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Parents
  • 0
    Microsoft has loads of spammers.  I believe there are people that have automated the creation of private sites within MS Online services.  This will allow the instantaneous creation of email entities as sources of spam.  Given the scale of MS infrastructure, it will be very hard to manage this spam as RBL's are creating a limited denial of service of email from Microsoft.  Limited because only some servers are tagged and they have thousands.


    Glad I use google apps..[:)]

    Owner:  Emmanuel Technology Consulting

    http://etc-md.com

    Former Sophos SG(Astaro) advocate/researcher/Silver Partner

    PfSense w/Suricata, ntopng, 

    Other addons to follow

Reply
  • 0
    Microsoft has loads of spammers.  I believe there are people that have automated the creation of private sites within MS Online services.  This will allow the instantaneous creation of email entities as sources of spam.  Given the scale of MS infrastructure, it will be very hard to manage this spam as RBL's are creating a limited denial of service of email from Microsoft.  Limited because only some servers are tagged and they have thousands.


    Glad I use google apps..[:)]

    Owner:  Emmanuel Technology Consulting

    http://etc-md.com

    Former Sophos SG(Astaro) advocate/researcher/Silver Partner

    PfSense w/Suricata, ntopng, 

    Other addons to follow

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