Re: [Jmap] Address Validation (was Re: Submission)

[Cyrus Daboo <[e-mail]>]

Hi Adrien,

--On April 25, 2017 at 9:26:20 AM +0000 Adrien de Croy <[e-mail]> 
wrote:

> I think the problem with lack of support for MDN / DSN in clients may be
> due to lack of implementation in the network of support for it.
>
> If there's still a significant number of deployed systems that don't
> support it, then clients have increased doubts about its worth.  Chicken
> and egg issue again.
>
> I wouldn't presume that the reason that it doesn't appear so much in the
> wild in clients is due to lack of interest.  Maybe some MUA authors could
> be approached for comment.

Yup, I implemented DSN and MDM in Mulberry - but as you say, due to the 
fact that there is no guarantee that status will be returned, it is not 
very useful in the general case. I can't remember the last time I used DSN 
- but I'll try it out on this message just to see what happens!

However, there some environments where it may be useful - e.g. an 
enterprise which has a required policy to enforce MDM read receipt or DSN 
success (something that could be controlled via device management 
restrictions). I doubt it is something that would ever be useful for a 
non-enterprise system.

-- 
Cyrus Daboo