Stephen Warren wrote:
My question is: Should Dovecot be detecting mail header continuation lines that start with a TAB, and stripping the TAB (converting to a space)?
No. Dovecot should not alter the message at all. There is an older bug in bugzilla about this; it is the MUA that is at fault here. The leading tab is FWS (Folding White Space) and can be added by clients (Exchange is particularly prone to do this) and should be ignored by everything up to and including the local MUA.
Is there an issue in mailman - should mailman be indenting with e.g. a SPACE character, or is mailman's action perfectly legal?
Not just legal, but if the subject line would exceed 998 characters (plus CRLF) it is required that the individual lines be wrapped.
HTH
John
-- John Peacock Director of Information Research and Technology Rowman & Littlefield Publishing Group 4501 Forbes Boulevard Suite H Lanham, MD 20706 301-459-3366 x.5010 fax 301-429-5748