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Since 15.05.2015 smtp experiencing problems. Smtp service (qmail) stops responding on port 25:
# time telnet localhost 25
Trying 127.0.0.1...
quit
quit
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
quit
quit
Connection closed by foreign host.
real 4m10.629s
user 0m0.000s
sys 0m0.002s
After server restart or sometimes apache stop or ixnetd restart its responding for a some random time, and then again it stops to respond. Plesk panel show it as stopped but qmail itself running in memory, and does other its work, it just stops responding at port 25, or responds with a huge delay.
I've tried change it to postfix, reconfigured with mchk, repaired with repair.sh -r, disabled and uninstalled parallels antivirus, antispam, dnsbl, disabled firewall, disabled smtp lock. Checked apache, dns. Enabled submission port which works when 25 port doesnt, but i need working 25 port.
Nothing solves problem, its just stops responding after some random time. There is no errors on maillog.
I think this problem occured after recent plesk microupdate, because i didn't do anything to server configuration in last months.
This article says it might be dnsbl http://kb.odin.com/3954 but it disabled(from plesk panel) on my server, maybe there is way to focefully kill any relation to dnsbl?
Plesk info:
OS Red Hat Enterprise Linux Server 5.9 (Tikanga)
Panel version 11.5.30 Update #50, last updated at May 18, 2015 05:21 PM
The system is up-to-date; last checked at May 17, 2015 10:56 PM
update: xinetd restart is definitely brings smtp alive, but it goes off after random period of time (5min ~ couple hours)
# time telnet localhost 25
Trying 127.0.0.1...
quit
quit
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
quit
quit
Connection closed by foreign host.
real 4m10.629s
user 0m0.000s
sys 0m0.002s
After server restart or sometimes apache stop or ixnetd restart its responding for a some random time, and then again it stops to respond. Plesk panel show it as stopped but qmail itself running in memory, and does other its work, it just stops responding at port 25, or responds with a huge delay.
I've tried change it to postfix, reconfigured with mchk, repaired with repair.sh -r, disabled and uninstalled parallels antivirus, antispam, dnsbl, disabled firewall, disabled smtp lock. Checked apache, dns. Enabled submission port which works when 25 port doesnt, but i need working 25 port.
Nothing solves problem, its just stops responding after some random time. There is no errors on maillog.
I think this problem occured after recent plesk microupdate, because i didn't do anything to server configuration in last months.
This article says it might be dnsbl http://kb.odin.com/3954 but it disabled(from plesk panel) on my server, maybe there is way to focefully kill any relation to dnsbl?
Plesk info:
OS Red Hat Enterprise Linux Server 5.9 (Tikanga)
Panel version 11.5.30 Update #50, last updated at May 18, 2015 05:21 PM
The system is up-to-date; last checked at May 17, 2015 10:56 PM
update: xinetd restart is definitely brings smtp alive, but it goes off after random period of time (5min ~ couple hours)
Last edited:
