I just did some more tests with different binaries. The problem occurs since:
Dovecot 2.1.3-0~auto+5 dovecot --version 2.1.3 (f30437ed63dc) Dovecot 2.1.3-0~auto+4 works fine dovecot --version 2.1.3 (ff5c341f8838) So my title is wrong. The problem only affects people "who like to live on the edge" of 2.1.3 release ;)The stable Dovecot 2.1.3 release http://dovecot.org/list/dovecot-news/2012-March/000219.html
is not affected.
