Thank you Mark for your immediate response.
The below are the tracebacks I could find in the mailman log.
*Jun 17 19:04:08 2021 (8642) Uncaught runner exception: sequence item 0: expected str instance, Header foundJun 17 19:04:08 2021 (8642) Traceback (most recent call last): File "/var/lib/mailman/mailman/src/mailman/core/runner.py", line 173, in _one_iteration self._process_one_file(msg, msgdata) File "/var/lib/mailman/mailman/src/mailman/core/runner.py", line 266, in _process_one_file keepqueued = self._dispose(mlist, msg, msgdata) File "/var/lib/mailman/mailman/src/mailman/runners/pipeline.py", line 37, in _dispose process(mlist, msg, msgdata, pipeline) File "/var/lib/mailman/mailman/src/mailman/core/pipelines.py", line 50, in process handler.process(mlist, msg, msgdata) File "/var/lib/mailman/mailman/src/mailman/handlers/avoid_duplicates.py", line 59, in process addrs = getaddresses(msg.get_all(header, [])) File "/usr/lib64/python3.6/email/utils.py", line 112, in getaddresses all = COMMASPACE.join(fieldvalues)TypeError: sequence item 0: expected str instance, Header foundJun 17 19:04:08 2021 (8642) SHUNTING: 1623936848.367641+4753f8127953071ddcabfe828ebe72fcf04d0ae2*
In the shunt file, I see something like this as below in CC while To is good:
*Cc: =?unknown-8bit?q?=22Support_Zimbra=22_=3Csupport-zimbra=40nic=2Ein=3E=2C?= =?unknown-8bit?b?ICLgpLbgpLDgpKYg4KSu4KS+4KSl4KWB4KSwIC0gU2hhcmFkIE1hdGh1ciIgPHN1cHBvcnQtdmFqcmFAc3VwcG9ydGdvdi5pbj4s?= =?unknown-8bit?b?ICLgpLDgpL7gpJzgpYfgpLYg4KS44KS/4KSC4KS5IC0gUmFqZXNoIFNpbmdoIiA8cmFqc0BuaWMuaW4+LA==?= =?unknown-8bit?b?ICJTYWJ5YXNhY2hpIENob3VkaHVyeSIgPHNhYnlhQG5pYy5pbj4sIG1haWxhZG1pbkBuaWMuaW4s?= =?unknown-8bit?b?ICJNUklUVU5KQVkgS1VNQVIiIDxta0BuaWMuaW4+LCAiQmhyaWd1IEt1bWFyIiA8YmhyaWd1QG5pYy5pbj4s?= =?unknown-8bit?b?ICJPbSBQcmFrYXNoIiA8b3AubmhxQG5pYy5pbj4sICJIYXJpaGFyYW4gTSIgPGhhcmloYXJhbi5tQGdvdi5pbj4s?= =?unknown-8bit?b?ICJQaGlzaGluZyBQaGlzaGluZyIgPHBoaXNoaW5nQG5pYy5pbj4sICJpbmNpZGVudCIgPGluY2lkZW50QG5pYy5pbj4s?= =?unknown-8bit?b?ICJNYW5hdiBSYWtoZWphIiA8bWFuYXYucmFraGVqYUBuaWMuaW4+?=*
Also, I came to know that two of the recipients in CC block have their mail ID display name in their local language. While I am not sure, I doubt if it could be the issue of getting shunted.
Please confirm and suggest any solution.
On Thu, Jun 17, 2021 at 8:48 PM Mark Sapiro <mark@msapiro.net> wrote:
On 6/17/21 6:56 AM, Shashikanth Komandoor wrote:
Is there any chance to find out the reason for shunting of themails through any means ?
Look in Mailman's var/logs/mailman.log for the tracebacks associated with the shunted messages.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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-- Thanks & Regards, Shashi Kanth.K 9052671936