Author: Marc Sherman Date: To: Matthew Byng-Maddick CC: Exim Users Mailing List Subject: Re: [exim] Outlook confuses EXIM + SA
Matthew Byng-Maddick wrote: >
> You need one of To:, Cc: or Bcc: as well.
Nope.
From RFC 2822, section 3.6: >
> The only required header fields are the origination date field and
> the originator address field(s). All other header fields are
> syntactically optional. More information is contained in the table
> following this definition.
Further down in section 3.6.3, it describes how the sending MTU must
remove the BCC header from outgoing messages, so if a message only has
BCC recipients, the resulting message will have none of the address
headers in it.
