delivery receipt question

[matt chisholm <ma...@pawspot.com>]

Hello,

I have a few questions regarding email clients that try to use delivery
receipts (not read receipts) with James. 

If Outlook adds a header "Return-Receipt-To:" to an email it is James
responsibility to handle the request to send the delivery receipt back the
sender or the mail server of the email recipient? 

On the web I read that "Return-Receipt-To:" is a non-standard header and
that many mail servers do not support it for various reasons, performance,
keeping spammers from discovering valid email address, etc... Is it
supported with James? Is this what is called a Delivery Status Notification
(DSN) on success?  Does DSNBounce mailet support this?

One user that has a mail account on James reported that he was getting
delivery receipts and that they suddenly stopped. I have not been able to
find anything interesting in the logs but maybe I am looking in the wrong
places.

I'm totally confused and would appreciate any help or pointers in the right
direction.

Btw, I am using James 2.2.0 on Redhat.  

Thanks,
Matt


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Re: delivery receipt question

[Stefano Bagnara <ap...@bago.org>]

matt chisholm wrote:
> Hello,
> 
> I have a few questions regarding email clients that try to use delivery
> receipts (not read receipts) with James. 
> 
> If Outlook adds a header "Return-Receipt-To:" to an email it is James
> responsibility to handle the request to send the delivery receipt back the
> sender or the mail server of the email recipient? 
> 
> On the web I read that "Return-Receipt-To:" is a non-standard header and
> that many mail servers do not support it for various reasons, performance,
> keeping spammers from discovering valid email address, etc... Is it
> supported with James? Is this what is called a Delivery Status Notification
> (DSN) on success?  Does DSNBounce mailet support this?

Return-Receipt-To: is deprecated stuff. AFAIK even sendmail does not 
support that header anymore.

The standards are MDN and DSN. The first is for client to client 
notifications the second one is for server to client notifications.

MDN is a client thing and not related to servers that only moves around 
the messages.

ESMTP DSN extension allow the declaration of NOTIFY=SUCCESS that allow a 
client to request notifications for successful deliveries.
Unfortunately James does not currenlty support the DSN extension.

I worked on it, and I have it working on a local branch but I had to 
change many core things and I think that even refactoring it we couldn't 
include it in James before a major release version (3.0).

If you want to track this issue here is the link:
https://issues.apache.org/jira/browse/JAMES-322

> One user that has a mail account on James reported that he was getting
> delivery receipts and that they suddenly stopped. I have not been able to
> find anything interesting in the logs but maybe I am looking in the wrong
> places.
> 
> I'm totally confused and would appreciate any help or pointers in the right
> direction.
> 
> Btw, I am using James 2.2.0 on Redhat.  
> 
> Thanks,
> Matt

Maybe the users he sends mail to have stopped sending receipts or that 
they changed their email client to one that does not support the 
notification.

Stefano


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