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Old 05-27-2013, 10:41 AM   #1
proNick
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Qmail - how to skip reverse DNS check?


Hello,

Can you help me how to skip reverse DNS check in Qmail?


Not sure, but I think it's something with tcpserver?


Thank you in advance!

Last edited by proNick; 05-27-2013 at 10:43 AM.
 
Old 05-27-2013, 11:50 AM   #2
bathory
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Quote:
Originally Posted by proNick View Post
Hello,

Can you help me how to skip reverse DNS check in Qmail?


Not sure, but I think it's something with tcpserver?


Thank you in advance!
You're right about tcpserver. Have a look at this

Regards
 
Old 05-27-2013, 02:43 PM   #3
proNick
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It looks like it's turned off already? Check this please:

Code:
[root@xx-7201 ~]# ps aux | grep smtp
root      2435  0.0  0.0   3620   232 ?        S    11:58   0:00 supervise smtp
qmaill    2459  0.0  0.0   3768   376 ?        S    11:58   0:00 /usr/bin/multilog t s1000000 n100 /var/log/qmail/smtp
vpopmail  2460  0.0  0.0   6780   544 ?        S    11:58   0:00 /usr/bin/tcpserver -v -R -H -l xx-7201.conepuppy.com -x /etc/tcprules.d/tcp.smtp.cdb -c 300 -u 89 -g 89 0 smtp /usr/bin/rblsmtpd -a hul.habeas.com -r bl.spamcop.net -r zen.spamhaus.org -r sbl-xbl.spamhaus.org -r dnsbl.njabl.org -r dnsbl.ahbl.org -r cbl.abuseat.org -r l1.spews.dnsbl.sorbs.net -r combined.njabl.org /var/qmail/bin/qmail-smtpd /home/vpopmail/bin/vchkpw /bin/true
vpopmail  2466  0.0  0.0   4684   384 ?        S    11:58   0:00 /usr/bin/tcpserver -v -R -H -l xx-7201.conepuppy.com -x /etc/tcprules.d/tcp.smtp.cdb -c 300 -u 89 -g 89 0 587 /var/qmail/bin/qmail-smtpd /home/vpopmail/bin/vchkpw /bin/true
vpopmail 12608  0.0  0.1  45064  1372 ?        S    15:37   0:00 /var/qmail/bin/qmail-smtpd /home/vpopmail/bin/vchkpw /bin/true
vpopmail 12650  0.0  0.0   3652   240 ?        S    15:39   0:00 /usr/bin/rblsmtpd -a hul.habeas.com -r bl.spamcop.net -r zen.spamhaus.org -r sbl-xbl.spamhaus.org -r dnsbl.njabl.org -r dnsbl.ahbl.org -r cbl.abuseat.org -r l1.spews.dnsbl.sorbs.net -r combined.njabl.org /var/qmail/bin/qmail-smtpd /home/vpopmail/bin/vchkpw /bin/true
root     12652  0.0  0.0  61156   724 pts/2    S+   15:39   0:00 grep smtp
[root@xx-7201 ~]#
Also, my /var/qmail/supervise/smtp/run file looks like this:

Code:
#!/bin/sh
QMAILDUID=`id -u vpopmail`
NOFILESGID=`id -g vpopmail`
MAXSMTPD=`cat /var/qmail/control/concurrencyincoming`
BLACKLIST=`cat /var/qmail/control/blacklists`
SMTPD="/var/qmail/bin/qmail-smtpd"
TCP_CDB="/etc/tcprules.d/tcp.smtp.cdb"
RBLSMTPD="/usr/bin/rblsmtpd"
HOSTNAME=`hostname`
VCHKPW="/home/vpopmail/bin/vchkpw"
REQUIRE_AUTH=0

exec /usr/bin/softlimit -m 95000000 \
     /usr/bin/tcpserver -v -R -H -l $HOSTNAME -x $TCP_CDB -c "$MAXSMTPD" \
     -u "$QMAILDUID" -g "$NOFILESGID" 0 smtp \
     $RBLSMTPD $BLACKLIST $SMTPD $VCHKPW /bin/true 2>&1

But my server still does not receive emails from servers that doesn't have reverse server...
 
Old 05-28-2013, 12:15 AM   #4
bathory
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Hi,

From your configuration, looks like you run qmailtoaster.
So I guess it's due to the rbls that you can receive mail from unresolvable domains
Maybe you can find more help by asking your question in their mailing list

Regards
 
  


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