(In reply to Miguel from comment #38)
(In reply to Rich from comment #39)
If this bug is so critical for you and so important for you, why you never do one of next yet?
(a) Use other than Thunderbird as your mailer which fully fulfills your pretty important requirement(s).
(b) Use other sophisticated and clever IMAP server who supports feature of SHOULD even if the feature is not MUST in RFC.
Why you never ask your IMAP server to support feature of SHOULD even if the feature is not MUST in RFC?
Even if SHOULD != MUST in RFC, why expecting feature of SHOULD can be a critical bug of a software?
SHOULD is sufficiently strong even if it's not MUST and SHOULD is weaker than MUST, isn't it?
(In reply to Miguel from comment #38)
(In reply to Rich from comment #39)
If this bug is so critical for you and so important for you, why you never do one of next yet?
(a) Use other than Thunderbird as your mailer which fully fulfills your pretty important requirement(s).
(b) Use other sophisticated and clever IMAP server who supports feature of SHOULD even if the feature is not MUST in RFC.
Why you never ask your IMAP server to support feature of SHOULD even if the feature is not MUST in RFC?
Even if SHOULD != MUST in RFC, why expecting feature of SHOULD can be a critical bug of a software?
SHOULD is sufficiently strong even if it's not MUST and SHOULD is weaker than MUST, isn't it?