On 06/09/2018 07:08 AM, Pedro David Marco wrote:
>On Saturday, June 9, 2018, 8:03:31 AM GMT+2, Rupert Gallagher
<r...@protonmail.com> wrote:
>On Fri, Jun 8, 2018 at 23:05, David Jones <djo...@ena.com
<mailto:djo...@ena.com>> wrote:
2.2 MISSING_HEADERS Missing To: header
The fillowing is all one needs.
5.0 MISSING_HEADERS Missing To: header
Remember that e-mail is mail after all.
The To: header may not exist in Outlook if all recipients where in BCC
and the original To: is company internal...
Email etiquette and best practices recommend putting your own email
address in the To: if there are no other addresses in the To: when
Bcc'ing. This protects the privacy of all recipients and handles the
Reply-To-All situation well.
Leaving the To: empty looks very spammy to many mail filters so I try to
educate senders when I come across these situations to help them get the
best delivery results to the Internet. Internally that may be fine.
--
David Jones
