John Horne wrote: > On Mon, 2009-04-20 at 20:46 +0800, W B Hacker wrote:
*snip* > You reject mail with no subject line? Per-user pref, actually. The snippet posted was stripped of about half its functionality as certain to be confusing. > As far as I can see no subject line is valid (so is no message-id it > seems). RFC2822 section 3.6 says: > > The only required header fields are the origination date field and > the originator address field(s). All other header fields are > syntactically optional. > > Further along RFC2822 says that a message-id SHOULD be present, but > that is not a MUST. > > The RFC's are only a small part of the whole environment. Without a far-end-assigned message-ID, it is hard to debug, let alone establish an evidence trail if/as/when one is called upon to do so... And empty subject lines are more than just a minor annoyance. Mind - we might do it differently if either were more common among 'legit' messages and/or folks would not wake up and correct them - but they are de minimus here. 0.67 percent, as it were. ;-) Bill -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
