On 9/19/2011 11:53 AM, Bruce Harrison wrote:

Mailman has been running well for months. All of a sudden no traffic is not going out. /var/log/maillog shows no errors. Mailman's smtp-failure shows:

Sep 19 13:31:32 2011 (1215) delivery to wilbcros@ut.utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:32 2011 (1215) delivery to briabrew@ut.utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:35 2011 (1215) Low level smtp error: (101, 'Network is unreachable'), msgid: <mailman.6.1316457053.1213.junk-l@mailman.utm.edu> Sep 19 13:31:35 2011 (1215) delivery to harrison@utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:38 2011 (1215) Low level smtp error: (101, 'Network is unreachable'), msgid: <mailman.7.1316457053.1213.junk-l@mailman.utm.edu> Sep 19 13:31:38 2011 (1215) delivery to junk-l-owner@mailman.utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:47 2011 (1215) Low level smtp error: (101, 'Network is unreachable'), msgid: <E6C16961ECB6B044A889CDAC6BA7B4B23CE035E9@EXCH2010MBOX1.utm.edu> Sep 19 13:31:47 2011 (1215) delivery to harrison@utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:47 2011 (1215) delivery to afortner@utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:47 2011 (1215) delivery to tlewis@utm.edu failed with code -1: (101, 'Network is unreachable')

I can ping and telnet to the upstream mail agent. This seems to have just started happening this morning. Upstream mail agent is an exchange system front end. Exchange is running fine, etc. Exchange guy is looking at logs...

Please see the FAQ at <http://wiki.list.org/x/-IA9> and, if necessary, the FAQ at <http://wiki.list.org/x/AoE9> and the list posts linked therefrom.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

On 9/19/2011 11:53 AM, Bruce Harrison wrote:

Mailman has been running well for months. All of a sudden no traffic is not going out. /var/log/maillog shows no errors. Mailman's smtp-failure shows:

Sep 19 13:31:32 2011 (1215) delivery to wilbcros@ut.utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:32 2011 (1215) delivery to briabrew@ut.utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:35 2011 (1215) Low level smtp error: (101, 'Network is unreachable'), msgid: <mailman.6.1316457053.1213.junk-l@mailman.utm.edu> Sep 19 13:31:35 2011 (1215) delivery to harrison@utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:38 2011 (1215) Low level smtp error: (101, 'Network is unreachable'), msgid: <mailman.7.1316457053.1213.junk-l@mailman.utm.edu> Sep 19 13:31:38 2011 (1215) delivery to junk-l-owner@mailman.utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:47 2011 (1215) Low level smtp error: (101, 'Network is unreachable'), msgid: <E6C16961ECB6B044A889CDAC6BA7B4B23CE035E9@EXCH2010MBOX1.utm.edu> Sep 19 13:31:47 2011 (1215) delivery to harrison@utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:47 2011 (1215) delivery to afortner@utm.edu failed with code -1: (101, 'Network is unreachable') Sep 19 13:31:47 2011 (1215) delivery to tlewis@utm.edu failed with code -1: (101, 'Network is unreachable')

I can ping and telnet to the upstream mail agent. This seems to have just started happening this morning. Upstream mail agent is an exchange system front end. Exchange is running fine, etc. Exchange guy is looking at logs...

Please see the FAQ at <http://wiki.list.org/x/-IA9> and, if necessary, the FAQ at <http://wiki.list.org/x/AoE9> and the list posts linked therefrom.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan