From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, Greg Sabino Mullane <greg(at)turnstep(dot)com>, pgsql-www(at)postgresql(dot)org |
Subject: | Re: "Extern" on email address |
Date: | 2016-06-07 17:17:56 |
Message-ID: | 18295.1465319876@sss.pgh.pa.us |
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Lists: | pgsql-www |
"Joshua D. Drake" <jd(at)commandprompt(dot)com> writes:
> On 06/07/2016 08:53 AM, Stephen Frost wrote:
>> Unfortunately, it's not optional. As much as the comment is that we're
>> "likely" to remove them, we really don't have a choice. Before too much
>> longer, DMARC is going to be used and respected and required by big
>> email organizations (eg: GMail ...) and if we change the Subject (or a
>> number of other headers, or the body of the email) then the DMARC will
>> fail and the email will be rejected.
>>
>> We're going to have to remove the subject tags and the footer from all
>> of the emails due to this.
> Outside of a warning to the lists that it is going to happen, this isn't
> a big deal. The only real concern is filters and you the email address
> isn't going to change, so we can filter on that.
I expect you can find the past discussions about this if you search
the archives for "DMARC", but the core point is that the only way we
can continue doing header-munging is if we change the From: address
so that list messages appear to originate from the listserv rather than
from the actual author. Otherwise, many large sites are going to start
treating it as spam/forgery; Yahoo already does. We pretty much agreed
that that solution is far worse than giving up header-munging and
footers.
regards, tom lane
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