moderated Re: Mail server reverse DNS still flakey #bug


Henning Schulzrinne
 

No, the problem persists as of 10 minutes ago. I can send email from the same account to dozens of other destinations, without any difficulty - it's only groups.io that fails. It's indeed Proofpoint, a very large email security company used by lots of large organizations (https://www.proofpoint.com/us/products/email-protection). If there was a larger problem, thousands of employees at my organization would quickly complain...

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