User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2b5) Gecko/20091218 Firefox/3.6b5 Build Identifier: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091208 Thunderbird/3.0 trying to create a folder "b.c" the imap server responds with "character not allowed in mailbox name: '.'". Thunderbird does not forward this message to the user. Reproducible: Always Steps to Reproduce: 1.select an imap server using '/' as folder seperator. Use plaintext authentication and no ssl/tls to ease debugging. 2.watch the imap protocol using tcpdump 3.try to create a folder "b.c" Expected Results: error popup I reproduced this using Dovecot. Configuration: # 1.2.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32.2 x86_64 Debian squeeze/sid log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mbox_write_locks: fcntl dotlock namespace: type: private separator: / location: maildir:~/Maildir inbox: yes list: yes subscriptions: yes auth default: passdb: driver: pam userdb: driver: passwd plaintext_auth has been enabled just for debugging. I get the same with plaintext disabled and using imaps. LC_ALL is set to "C"

(In reply to comment #0) > trying to create a folder "b.c" the imap server responds with "character not > allowed in mailbox name: '.'". > Steps to Reproduce: > 1.select an imap server using '/' as folder seperator. >(snip) > 3.try to create a folder "b.c" > I reproduced this using Dovecot. Configuration: > namespace: > separator: / As seen in attached IMAP log to bug 517461, Dovecot's default separater seems ".". If create request of "b/c", I guess Dovecot creates "c under b" by create request of "b/c". If "separator: ."(probably default), I guess Dovecot creates "c under b" by create request of "b.c". > Thunderbird does not forward this message to the user. What message was displayed by Tb for create request of "b.c"? Tb silently terminates creation request of "b.c"? Anyway, get IMAP log, check IMAP level flow, and attach log file(never paste long data), please. > https://wiki.mozilla.org/MailNews:Logging

I can't say anything about "create b/c". That is not part of this bug report. > Anyway, get IMAP log, check IMAP level flow, and attach log file(never paste > long data), please. See attachment. Look for "Character not allowed in mailbox name" to see Dovecot's reply. This message is not shown to the user. Hope this helps.

Confirmed with Gmail IMAP. > 8 create "1234567890123456789012345678901234567890123456789012345678901234567890" > 8 NO Folder name is not allowed. (Failure) Gmail IMAP folder path(delimited by /) is Gmail Label, and Gmail has limitation of 40bytes of Gmail Label, thus too log folder path/namee is rejected. Tb3 didn't display any error message.

Removing myslef on all the bugs I'm cced on. Please NI me if you need something on MailNews Core bugs from me.

Harald, does this still reproduce for you?

No, AFAICS dovecot allows to create a folder "b.c" now. ???

Thanks for the update