I've been toying with the Mail::DomainKeys and Mail::DKIM modules and
they both want to have all of the data lines, which is going to get
wasteful (performance-wise) really fast. Would it be reasonable to
create a new data_lines hook which would receive each line as it was
received? The existing data hook would fire off a copy of the line to
each registered data_lines plugin, which could return:
1) DECLINED (hasn't determined whether this message is good);
2) OK (has determined that this message isn't interesting or is valid);
3) DENY (don't continue accepting DATA lines).
Looking at the existing domainkeys plugin, I may just create a dkim
plugin and have it include DomainKeys support it it finds that header
(as a message could be signed with both), so that at least only a single
extra copy of the message is going to be made in most cases.
John
