[Mailman-Users] DKIM signing issue - relaying mailman e-mails from third party sources
Mark Sapiro
mark at msapiro.net
Thu Oct 12 19:25:20 EDT 2017
On 10/12/2017 02:15 PM, Grant Taylor via Mailman-Users wrote:
> On 10/11/2017 12:12 PM, Mark Sapiro wrote:
>> solution 2). Your mail relaying process can rewrite the envelope
>> sender to your domain, e.g., campaign at myserver.com or some other
>> appropriate @myserver.com address. This will break mailman's automated
>> bounce processing for mail from mailman-bounces at external-company.com
>> that is relayed by you, but if you can verify the deliverability of
>> that mail before relaying it and if it's not deliverable, reject it
>> before rewriting the envelope sender, that won't be an issue.
>
> Would something like configuring the MTA to use Sender Rewrite Scheme
> help avoid this issue?
Yes. SRS, as I understand it from
<https://en.wikipedia.org/wiki/Sender_Rewriting_Scheme>, would solve the
whole problem.
--
Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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