Odd mailbox names appearing on iOS Mail.app client post-upgrade

"Philip Prindeville via Info" <[email protected]>
Newsgroups gmane.mail.imap.cyrus
Message-ID <[email protected]>
Hi all,

I updated Fedora on my mail server last Fall and went 3.4.4 to 3.6.0, and immediately noticed that my MacOSX and iOS clients were showing mailboxes looking like I<hexdigit*16> or else I<hexdigit*8>-<hexdigit*4>-<hexdigit*4>-<hexdigit*12> such as:

localhost> lm
I000f949e43016cf3 (\HasNoChildren)                                         
I008c482f4c6dc04c (\HasNoChildren)                                          I013c95c942d88dc9 (\HasNoChildren)                                          I01d66834-ad49-49bc-bbc1-e88dd5daa634 (\HasNoChildren)                      I01e717335405ff9e (\HasNoChildren)                                          I01ec06a14a4a9b45 (\HasNoChildren)                                          I022db01846168a0b (\HasNoChildren)                                          I02b22ece-586a-472c-9682-56aa077881e7 (\HasNoChildren)                      I034348fc-8758-46b7-b4a0-531a810e75b8 (\HasNoChildren)                      I034e9db54a247d82 (\HasNoChildren)            
...

But other mailboxes show up as subscribed:

INBOX.Lists.Cyrus-info (\Subscribed \HasNoChildren)    

Where did these names come from?

Do they contain anything?  Can I safely delete them?

Why aren't the clients ignoring folders that aren't subscribed?

I updated to Fedora 39 and am running 3.8.1 right now.

Thanks,

-Philip


------------------------------------------
Cyrus: Info
Permalink: https://cyrus.topicbox.com/groups/info/Tde3dfd2c93829b50-M4fce24cd98eb904250213725
Delivery options: https://cyrus.topicbox.com/groups/info/subscription
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.