https://mail.gnome.org/archives/tinymail-devel-list/2010-January/msg00007.html
Patch: fix for bodystructure support in gmail imap
patchfixsupportgmailimap
https://dovecot.org/mailman3/archives/list/dovecot@dovecot.org/thread/4FIIZ3DR4W6XSJAHJXTSKVX4LXRUNAMK/
Segmentation fault in imap_bodystructure_is_plain_7bit - dovecot - dovecot.org
segmentation faultimapplaindovecot