A subscriber to one of my lists who posts from gmail has been made aware that some list subscribers do not get his postings because of DKIM setup at gmail. See attached error message.

I understand that he can't do anything about the DKIM setup at gmail.

Can I as list admin do something in the list setup (Mailman 2.29)?

Also, how many subscribers are likely affected by his (or any gmail user's) DKIM setup? That is, are most list subscribers receiving his messages anyway, or is this problem preventing e-mail from him going to most list subscribers?

Thomas Gramstad

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Message was blocked due to DKIM (). From:Anders Ericson *frilanders@gmail.com* frilanders@gmail.com To: Biblioteknorge *biblioteknorge@kunnskapsallmenning.no* biblioteknorge@kunnskapsallmenning.no Subject: Biblioteket som statussymbol. Lat ungdomen lese, for _born._Vegar,_vatn,_straum_–_og_bibliotek Date:2021-06-24 09:47PM Message ID:1624564030-205058-5323-17319-1 IP:158.36.191.155 (hotell.nuug.no) Envelope From:biblioteknorge-bounces@mailman.kunnskapsallmenning.no Recipients: Recipients Action Reason Delivery Status *kristin.johanne.havstad@arendal.kommune.no* kristin.johanne.havstad@arendal.kommune.no Blocked DKIM Not Delivered

Dette kan muligens skyldes at SPF record ikke er helt riktig:

v=spf1 redirect=_spf.google.com

SPF Alignment Domain not found in SPF

Med vennlig hilsen

*Odd Arvid Knudsen* *Teknologiarkitekt* M: +47 488 92 398

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