Don't see all the addresses a mail message was sent to when the message is forwarded from VMSmail

Question:

I don't see all the addresses a mail message was sent to when the message is forwarded from VMSmail. Why is that? Can I do
something to have all the addresses included?

Answer:
The problem is that a VMSmail account (for example, JDOE) has been set to forward mail to another address.

When a message is sent to the JDOE account via SMTP, it is forwarded to the address specified by the SET FORWARD command. When the message is delivered to that address, it lists only the JDOE recipient and the sender, but not other recipients.

The solution is to ensure that the "headers" parameter is set to send the header information.

The MAIL CONFIG utility includes a parameter called "Include Resent Headers on VMS MAIL forwards." If set to TRUE (the default), the SMTP Server sends extra header information, including when the message was resent, who is was resent from, and who is was resent to. To access the utility, enter TCPWARE CONFIG/MAIL.

Some SMTP Servers, Microsoft Exchange, for example, do not handle those extra headers well and you cannot see the other addresses that the email was sent to.