[Dovecot] Wish-list: X-Delivered-To headers generated by dovecot-deliver

Would it be sensible/"cost effective" to make dovecot-deliver generated X-Delivered-To header(s) based on command line parameter(s)? [after striping such existing headers, before consulting sieve]

I need it to: a) *clearly* mark POP/IMAP account fetched by fetchmail [with fetchmail using directly dovecot-deliver in --mda option] b) cleanly implement "shared mailboxes" with MTA such as sendmail that can be easily forced to generate "one header per one recipient" [AFAIK]

-- [pl>en: Andrew] Andrzej Adam Filip : anfi@onet.eu Order and simplification are the first steps toward mastery of a subject -- the actual enemy is the unknown. -- Thomas Mann