Re: Multiple "To:" and "Cc:" header lines in SMTP messages

[[e-mail]]

This has been discussed on the DRUMS list, which is the list charged
with clarifying matters  like these.

The more-or-less conclusion was:

- In certain situations (namely where the To: lines would be more than
  8 Kbytes or so in length when unwrapped), certain mailers break,
  whereas they accept multiple To: lines
- Therefore, people will go on breaking things onto multiple To: lines.
- The practice should be frowned upon; having multiple To: lines with
  a single address on each is silly. So it's a SHOULD NOT GENERATE.
- The only recipient semantics that make sense is to treat it as if it
  was a single long To: field. So it's a SHOULD ACCEPT.

Or something like that. Go to the DRUMS archives if you want details.

               Harald A