Re: [mailop] message attachments, was Guide for setting up a mail server ?

2023-07-14 Thread John Levine via mailop
It appears that Grant Taylor via mailop  said:
>I'd be worried that some (web) MUAs would deal with multipart/digest 
>worse than they deal with message/rfc822 contained in the former. 
>Especially with the comment that someone made about inline vs attachment 
>disposition of the message/rfc822 MIME parts.

I found they dealt pretty badly with all of them.  I use quaint old Alpine
which deals with attached messages just fine, but then I am strange.

R's,
John
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Re: [mailop] message attachments, was Guide for setting up a mail server ?

2023-07-14 Thread Grant Taylor via mailop

On 7/14/23 9:22 PM, John Levine via mailop wrote:

Well, sure.  What do you think mailing list MIME digests are?


I assume that you're referring to multipart/digest.

The disadvantage is that a lot of mail systems, particularly popular 
webmail, deal poorly with embedded messages.


Agreed.

I'd be worried that some (web) MUAs would deal with multipart/digest 
worse than they deal with message/rfc822 contained in the former. 
Especially with the comment that someone made about inline vs attachment 
disposition of the message/rfc822 MIME parts.


When the IETF was trying to figure out the least bad way to deal with 
DMARC list damage I mocked up some possibilities including a couple of 
ways to wrap messages as attachments. We found that unwrapping and 
replying to them worked poorly, so we decided on per-user From 
rewrites (my dmarc.fail hack) instead.


Yep.



Grant. . . .
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Re: [mailop] message attachments, was Guide for setting up a mail server ?

2023-07-14 Thread John Levine via mailop
It appears that Hans-Martin Mosner via mailop  said:
>Has anyone on this list tried forwarding (e.g. for ex-employees) via 
>attachment? 

Well, sure.  What do you think mailing list MIME digests are?

The disadvantage is that a lot of mail systems, particularly popular
webmail, deal poorly with embedded messages.

When the IETF was trying to figure out the least bad way to deal with
DMARC list damage I mocked up some possibilities including a couple of
ways to wrap messages as attachments. We found that unwrapping and
replying to them worked poorly, so we decided on per-user From
rewrites (my dmarc.fail hack) instead.

R's,
John
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