On 2/12/26 11:26 AM, Mark Hammack wrote:
I am working on a z/OS email client. The issue I'm running into is I
now need to use TLS to an external email server. I issue the STARTTLS
and get back the proper response, but when I try to initiate AT-TLS,
using the code from th IP Programmer's Guide and reference, I keep
getting errors so I'm not sure what I am doing wrong.
This is probably because STARTTLS is bi-modal, it starts unencrypted and
then switches to encrypted communications.
Conversely SMTPS (SMTP over TLS on port 465) is TLS encrypted from the
get-go.
I don't know if AT-TLS has the ability to support STARTTLS or not.
Do you have the option of using the SMTPS port (TCP 465) instead of SMTP
(25) or submission (587)?
--
Grant. . . .
--
Grant. . . .
unix || die
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