[Mailman-Users] Question about rejection messages.
Stephen J. Turnbull
stephen at xemacs.org
Wed Jul 2 14:28:51 CEST 2014
Robert Heller writes:
> All three of the comcast bounces were @cable.comcast.com addresses.
> Other comcast address (all @comcast.net) went through fine. The
> @cable.comcast.com were working for sometime.
Well, comcast.net is participating in DMARC, while neither comcast.com
not cable.comcast.com are. I suspect that they've decommissioned
those domains for incoming mail completely, and so assume that any
mail going to such addresses is spam based on old lists.
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