Hi,

I will try to create a coredump later but now I see version 2.3.2.1 also crashing in LMTP :-(

2018-07-12T10:09:57.336062+02:00 saruman dovecot: lmtp(an007498)<11814><zrPDEdUMR1smLgAAQ/KzDw>: Fatal: master: service(lmtp): child 11814 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) 2018-07-12T10:09:57.382925+02:00 saruman dovecot: lmtp(an007498)<11819><fqw2E9UMR1srLgAAQ/KzDw>: Panic: file imap-bodystructure.c: line 116 (part_write_body_multipart): assertion failed: (part->data != NULL) 2018-07-12T10:09:57.383835+02:00 saruman dovecot: lmtp(an007498)<11819><fqw2E9UMR1srLgAAQ/KzDw>: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xc9e06) [0x7ff42cac0e06] -> /usr/lib64/dovecot/libdovecot.so.0(+0xc9ebe) [0x7ff42cac0ebe] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7ff42ca35813] -> /usr/lib64/dovecot/libdovecot.so.0(imap_bodystructure_write+0x3b1) [0x7ff42ca95f81] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xbd397) [0x7ff42ce2b397] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xc005c) [0x7ff42ce2e05c] -> /usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_get_special+0x20d) [0x7ff42ce2e4cd] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_get_special+0xd) [0x7ff42cdb0b6d] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_set_attachment_keywords+0x162) [0x7ff42cdb0f42] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xbdd25) [0x7ff42ce2bd25] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xbe10b) [0x7ff42ce2c10b] -> /usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_get_parts+0x60) [0x7ff42ce2dcd0] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_get_parts+0x28) [0x7ff42cdb04d8] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(+0x2f11e) [0x7ff4285e611e] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(sieve_message_body_get_text+0x38) [0x7ff4285e76a8] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(ext_body_get_part_list+0x47) [0x7ff42861b187] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(+0x648d2) [0x7ff42861b8d2] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(sieve_interpreter_continue+0x71) [0x7ff4285f8611] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(sieve_interpreter_run+0x2b) [0x7ff4285f886b] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(+0x53fb2) [0x7ff42860afb2] -> /usr/lib64/dovecot/libdovecot-sieve.so.0(sieve_multiscript_run+0x38) [0x7ff42860bd28] -> /usr/lib64/dovecot/modules/lib90_sieve_plugin.so(+0x3907) [0x7ff428873907] -> /usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver+0xdc) [0x7ff42d0c41cc] -> dovecot/lmtp(lmtp_local_data+0x6eb) [0x55d90309e95b] -> dovecot/lmtp(cmd_data_continue+0x23d) [0x55d90309d4ed] -> /usr/lib64/dovecot/libdovecot.so.0(+0x507f0) [0x7ff42ca477f0] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x55) [0x7ff42cad7b35] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xe7) [0x7ff42cad9307]

I'm still on maildir and my current setting about attachments is: mail_attachment_detection_options = add-flags-on-save exclude-inlined

Wolfgang