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only send \NonExistent for IMAP4rev2, and automatically subscribe to imported mailboxes

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This commit is contained in:
Mechiel Lukkien
2023-02-17 18:35:11 +01:00
parent ad900b74e7
commit fb3794e31b
3 changed files with 20 additions and 4 deletions
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7
imapserver/server.go
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@ -1237,7 +1237,12 @@ func (c *conn) applyChanges(changes []store.Change, initial bool) {
c.bwritelinef("* %d FETCH (UID %d FLAGS %s)", seq, ch.UID, flaglist(ch.Flags).pack(c))
}
case store.ChangeRemoveMailbox:
c.bwritelinef(`* LIST (\NonExistent) "/" %s`, astring(ch.Name).pack(c))
// Only announce \NonExistent to modern clients, otherwise they may ignore the
// unrecognized \NonExistent and interpret this as a newly created mailbox, while
// the goal was to remove it...
if c.enabled[capIMAP4rev2] {
c.bwritelinef(`* LIST (\NonExistent) "/" %s`, astring(ch.Name).pack(c))
}
case store.ChangeAddMailbox:
c.bwritelinef(`* LIST (%s) "/" %s`, strings.Join(ch.Flags, " "), astring(ch.Name).pack(c))
case store.ChangeRenameMailbox: