Github user sebbASF commented on the issue:
https://github.com/apache/incubator-ponymail/issues/149
An example message with no subject is:
http://mail-archives.apache.org/mod_mbox/aries-user/201602.mbox/%3Ctrinity-826ab43b-725d-4ea1-8b46-3355c1f4c6b7-1456058174634%403capp-gmx-bs33%3E
This has the From line:
user-return-1748-apmail-aries-user-archive=aries.apache....@aries.apache.org
Sun Feb 21 12:36:23 2016
which does not appear in the following archive:
http://my.ponymail/api/[email protected]&date=2016-2
Messages 1747 and 1749 are present; 1748 is not.
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