[Info-vax] "SEND MAIL" doesn't send mail, mail stays in queue

[Grant Taylor]

On 01/25/2018 01:23 PM, Stephen Hoffman wrote:
> I've encountered a mail server that won't connect to a mail server that 
> lacks STARTTLS.

I'd be curious to know what mail server that was.

I'm not saying that they don't exist, but I am saying that I think they 
are quite rare.

There is a difference in server to server SMTP with lack of STARTTLS and 
client to server submission with lack of STARTTLS.

It is quite common for mail servers to require STARTTLS for clients to 
authenticate to relay mail through them in an effort to protect the 
authentication credentials.

I also suspect the lack of STARTTLS can be at least partially mitigated 
by a backup mail relay that does provide STARTTLS that will connect to 
VMS without STARTTLS and relay messages in.



-- 
Grant. . . .
unix || die