Microsoft Exchange has started quarantining too many messages from this listserv as "phishing". It is several per day; one day there was 16.
Adding the [email protected] address to the Safe Senders list doesn't work because of how the messages are sent "on behalf of" (i.e. the sender not the listserv). The email support team tells me that the reason the filter is catching them is they have dmarc failure. One example is the message below. It failed with: Authentication-Results: spf=pass (sender IP is 130.160.0.25) smtp.mailfrom=listserv.ua.edu; dkim=pass (signature was verified) header.d=UA.EDU;dmarc=fail action=none header.from=COX.NET;compauth=fail reason=001 But another message from the listserv passes: Authentication-Results: spf=pass (sender IP is 130.160.0.25) smtp.mailfrom=listserv.ua.edu; dkim=pass (signature was verified) header.d=UA.EDU;dmarc=pass action=none header.from=LISTSERV.UA.EDU;compauth=pass reason=100 On the other hand, messages I send to the server have mixture of pass and fail, and they aren't getting quarantined. Does anyone know if this is a problem originating before it hits listserv.ua.edu, or is it a problem in listserv.ua.edu? The mail people are claiming it has to be fixed at the server end. -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Joel C. Ewing Sent: Monday, February 12, 2024 12:10 PM To: [email protected] Subject: Re: Banks migrate from mainframes to AI-driven cloud tech ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
