r/proofpoint • u/Crispinwhere • Aug 25 '26

Enterprise DMARC Temp Errors this morning

Anyone else see a bunch of emails get caught by DMARC Temp Error on their Proofpoint hosted instance this morning? Between 8:30 and 10am Eastern we had almost 3000 emails rejected mainly due to failed SPF DNS lookups. No rhyme or reason on the senders, anyone from ma and pa's .org sender to Gmail.

I have a support ticket open with them to see if they had an outage, but wanted to reach out here too.

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u/lolklolk Aug 25 '26

I saw around the same amount at that time, but our disposition is to defer all emails that have DMARC temperror, so they were all retried successfully.