[Hidden-tech] AOL.COM emails have become problematic

[R. David Murray]

The problem is that the mailing list wants to re-send the message as
'from' the aol address, but with various bits of the message modified.
DMARC disallows this.

This is a known problem and has been for quite some time with Yahoo at
least.  There are various articles about it.  Mailman (the most popular
mailing list software) has some mitigations for it that the list owner
can select, but I don't think any of them are perfect.  I know of
at least one site that just rewrites the from address so that it
is no longer a yahoo address (xyz at yahoo.com.dmarc-invalid), which
at least allows the message to be delivered.  Also not a very
good solution.


On Sun, 26 Apr 2015 22:18:24 -0400, "Town Websites" <townwebsites at gmail.com> wrote:
> 
> 
> 
> Curious about DMARC; it appears to be an attempt to solve a problem that
> most people would like to have solved for email, namely, limiting mail sent
> from a domain to those that come from an authorized sender.  In other words,
> if you set up DMARC on your domain, and someone spoofs an email from your
> domain pretending to be you, that is the problem DMARC is trying to solve -
> prevent that email from being delivered.
> 
> It appears to be a new standard (March 18th, 2015. RFC 7489) and I don't yet
> understand the standard - except that it looks like it turns SPF and DKIM
> into a more formal means of identifying who is authorized to send email from
> your domain, which I think is potentially a very good change.
>  
> With that in mind, Rich, do you know what specifically is the problem with
> mailing lists in general and HT mailing list in particular for those using
> AOL email?     Does the fix require changes in mailing list packages,
> changes in how individuals using some email such as AOL configure their
> SMTP, changes in everyone's client email, getting adapted to new
> conventions, or something else?
> 
> I'm partly curious because my mother said some of her AOL email is getting
> blocked by some recipients, so I wonder if this is related.
> 
> Charlie
> 
> 
> -----Original Message-----
> From: hidden-discuss-bounces at lists.hidden-tech.net
> [mailto:hidden-discuss-bounces at lists.hidden-tech.net] On Behalf Of Rich Roth
> Sent: Sunday, April 26, 2015 9:20 PM
> To: Hidden-Tech Tech
> Subject: [Hidden-tech] AOL.COM emails have become problematic
> 
> 
> 
> 
> AOL has changed their email system in a way that will cause some emails not
> to be delivered:
> see:
> http://postmaster-blog.aol.com/2014/04/22/aol-mail-updates-dmarc-policy-to-r
> eject/
> 
> SO if you are receiving HT emails at an AOL.COM address, you might want to
> consider adding another email address to the HT list.
> Note: You might see this issue with other emails from/to AOL
> 
> Rich/webmaster
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