If you didn't set it before, then set it to 0 now (or "no", "off", "f", or "false") to turn it back off again.
altnamespace:1Use the alternate IMAP namespace, where personal folders reside at the same level in the hierarchy as INBOX.
This option ONLY applies where interaction takes place with the client/user. Currently this is limited to the IMAP protocol (imapd) and Sieve scripts (lmtpd). This option does NOT apply to admin tools such as cyradm (admins ONLY), reconstruct, quota, etc., NOR does it affect LMTP delivery of messages directly to mailboxes via plus-addressing. The default changed in 3.0 from off to on.
-nic
Good morning,
we've found some weird behavior of Outlooks after migrating mailboxes from 2.4.x to 3.4.x.
MS Outlook (2019,O365) created in the user's mailbox folder "INBOX" and int this folder are default folders like Drafts, Sent Items, ... and he do not accept to save sent emails to original "Sent Items"
On old cyrus we have not defined varialbe "altnamespaces", it's default value was changed from version 3.x.
Roudcubemail is OK.
What cause that weird behavior of Outlook?
Thanks and best regards
J.Karliak
-- Nic Bernstein nic@xxxxxxxxxxxxxxxx https://www.nicbernstein.com
