[bug-mailutils] segfault by movemail with imap

[Ulf Rehmann]

movemail quits with segmentation fault when connecting to an imap
server.

E.g., with a call like

     movemail imap://<user>:<passwd>@<imap_server> my_inbox

(same with the option --tls)

According to the server logs the call connects successfully, but it
does not download anything.

This happens with movemail from mailutils-1.2, but also with that from
mailutils-1.1 as distributed by debian and by ubuntu.

(There is no problem with pop3 servers.)