You may be able to utilize the "Undeliverable" feature in the CSSSMTP Config 
setup. You can specify the action to take (store or delete) on a dead letter 
and a unix directory to store it in.

David

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Sasso, Len
Sent: Friday, August 28, 2020 6:58 AM
To: [email protected]
Subject: Re: Sending email from the Mainframe

Does anyone have JCL that sends an email, using CSSMTP, from the Mainframe and 
if it is unable to be delivered, for any reason, sends an email back to the 
Sender with a corresponding message?


Thank You and Please Be Safe!

Len Sasso
Systems Administrator Senior
CSRA, A General Dynamics Information Technology Company
327 Columbia TPKE
Rensselaer, NY 12144

Office Hours: M-F  7 AM - 3:45 PM
Out-Of-Office: Friday, August 28, 2020  Noon - 3:45 PM
Phone: (518) 257-4209
Cell: (518) 894-0879
Fax: (518) 257-4300
[email protected]
URL: 
https://protect2.fireeye.com/v1/url?k=d6ec75ce-8aadedc4-d6eeb904-0cc47a6d17ce-a101fbc807c29bfb&q=1&e=755c3fc4-a8e5-4af5-b36f-63034689dc4b&u=http%3A%2F%2Fwww.gdit.com%2F<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.gdit.com&d=DwIFAw&c=GSntNbUav5AC0JJIyPOufmfQT3u3zI7UKdoVzPd-7og&r=tIdjUplbIRGr4vkhlZCB7B_ivXjfG-CqQQpihq7_n5M&m=A3jH5NdknLIxIZ4iLhDO1ytRnN9_5HaAKpTTN1skTwU&s=eI5UbwvjxzRAFIvz4k92mpp_x_wDiI4uvQ3k-gW9uKs&e=
 >




________________________________
From: IBM Mainframe Discussion List <[email protected]> on behalf of 
Timothy Sipples <[email protected]>
Sent: Friday, July 24, 2020 5:56 AM
To: [email protected] <[email protected]>
Subject: Re: Sending email from the Mainframe



 [External: Use caution with links & attachments]

Grant Taylor asks:
>What happens to email if CSSMTP (AT-TLS) is configured to *require* 
>encryption and the receiving system doesn't support encryption?

Fundamentally the same thing(s) that happen when the network connection is down 
or too slow (times out), for whatever reasons. Network encryption is part and 
parcel of the network path. This class of failures must already be catered for. 
In this case, Len Sasso's organization is mandating TLS 1.2+, and I agree with 
Shmuel Metz who wrote:
>If management has decreed that all SMTP traffic be encrypted, then 
>barring a configuration error the relay will accept encrypted traffic.

Moreover, it's entirely possible that your attitude would only increase relay 
administrators' burdens, the people who currently have to manage, support, 
monitor, and audit the e-mail traffic from the one and only system still 
transmitting over an unencrypted connection, a connection modality they'd very 
much like to retire as quickly as possible. You know, that "old, obsolete 
mainframe" that you're actively arguing should actually be as old and obsolete 
as you can possibly force it to be. (TLS is *really* not new.) Or it's entirely 
possible that the relay administrators aren't inclined or equipped to provide 
even mediocre service levels for unencrypted connections, or even that there's 
a lone dedicated relay gathering dust in a wiring closet somewhere to support 
this one unencrypted connection, a relay that nobody left in the organization 
even understands or really knows about, that isn't backed up or DR protected, 
that still runs on a 10 Mbps Ethernet segment that miraculously hasn't been 
disconnected yet. Hence the unencrypted connection is MORE prone to failure, 
not less. All very possible, even predictable and likely. And I haven't even 
gotten to the regulatory issues and penalties.

Conceivably you could also reduce or eliminate your personal security 
authentication failure planning and handling (hopefully automated) 
responsibilities if you effectively disable your SAF security provider, such as 
RACF. Then those few pesky authentication and authorization rejections wouldn't 
occur, and everyone could just go to the pub and stay there (or whatever). 
That's the logical consequence of your argument, isn't it? I don't think you've 
got a strong argument.

Sorry to be blunt here, but I feel compelled to offer my personal view (as 
always). My colleagues (and I mean that word expansively, in and out of
IBM) work really hard to deliver and support truly cutting edge capabilities, 
including downright amazing security capabilities, in/for this unique and 
indispensable platform. And this community, overall, often works really hard to 
put these capabilities into practice, in many cases literally to keep 
civilization functioning. Then there are a few people who manage a few of these 
systems, and...well, let's all strive to do better, OK?

[Why am I expecting a minor Twitter storm now? :-)]

- - - - - - - - - -
Timothy Sipples
I.T. Architect Executive
Digital Asset & Other Industry Solutions IBM Z & LinuxONE
- - - - - - - - - -
E-Mail: [email protected]

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