On 9/2/2016 1:32 PM, Dave Brockman wrote: > On 9/2/2016 3:02 AM, Mark Milhollan wrote: > >> That they can reach MSN/Hotmail isn't sufficient proof that the reverse >> is true. You might check that your client hasn't blocked 25/TCP (or >> more) from the supposed source(s) named in the delay notices. > > Haven't found anything as of yet. Border FW and host FW have been > verified. I'm peeling through 9 levels of filtering, but all of these > processes should be post submission at this point. Still waiting on my > final NDR to my OL.com address, hoping there is something there.
Follow-up: My NDR was scheduled to be delivered on Sunday, the email was delivered sometime between Friday evening and then. All appears well sending from 365 and Hotmail/Outlook sides. Thank you if someone nudged something. We did find and correct an issue on a specific outbound configuration, but nothing changed on the receive side. Regards, dtb
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