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Feature #16627

net/imap: support NAMESPACE extension (RFC2342)

Added by nevans (Nicholas Evans) about 2 months ago.

Status:
Open
Priority:
Normal
Assignee:
-
Target version:
-
[ruby-core:97126]

Description

This extension predates IMAP4rev1 (RFC3501), so most IMAP servers
support it. Many popular IMAP servers are configured with the default
personal namespaces as ("" "/"): no prefix and "/" hierarchy
delimiter. In that common case, the naive client may not have any
trouble naming mailboxes.

But many servers are configured e.g. with the default personal namespace
as ("INBOX." "."), placing all personal folders under INBOX with "."
as the hierarchy delimiter. If the client does not check for this, but
naively assumes it can use the same folder names for all servers, then
folder creation (and listing, moving, etc) can lead to errors.

See also the github PR: https://github.com/ruby/ruby/pull/2902


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