I’m hoping someone from Gmail can reply off list.
We (Stanford University—stanford.edu) are receiving a large number of deferrals
when trying to delivery to Gmail.com. The smtp code returned is:
421-4.7.28 Gmail has detected an unusual rate of mail originating from your SPF
The best educated g
OT, I am glad to see MS is doing srs for now. For long days in the past,
they didn't have SRS for their outlook/hotmail forwarding. That sucks.
The best educated guess I can make as to that error is that when our
Office365 environment last weekend began doing SRS and rewriting the
sender addr
Based on past experience, I'd suggest checking Google Postmaster Tools over
the next few days to see if it gives any more clues. The report visibility
is delayed, hence the mention of over the next few days.
-Jeffrey
On Wed, Jul 3, 2024 at 5:24 PM Jason R Cowart via mailop
wrote:
> I’m hoping
