Felix Miata wrote:
Is everyone getting these? I seem to get them every time I start a mailing list thread. Should we be adding postmaster@outlook.com to our filters?
I'm not subscribed to the support list, you may want to ask there. From what I can tell, it is your message to the list that is being sent to a subscriber (amdlnx60@googlemail.com) and then forwarded to @outlook.com. I don't know what Micosoft does with it, maybe they also try to forward it to Google, because the error is from Google:
550-5.7.26 This message does not have authentication information or fails to 550-5.7.26 pass authentication checks. To best protect our users from spam, the 550-5.7.26 message has been blocked. Please visit 550-5.7.26 https://support.google.com/mail/answer/81126#authentication for more 550 5.7.26 information. b16-20020aa7d490000000b0041cc16201e3si4773876edr.459 - gsmtp'
-- Per Jessen, Zürich (13.8°C) Member, openSUSE Heroes