@ITTechMon , if you re-enable download domains and attempt to access OWA
from https://your.download.domain (as a test only, "Users must NOT use
the Download Domains to access Outlook on the Web as this would
eliminate the protection provided by the Download Domains feature."),
does it work?
Download Domains still doesn't work for me with Exchange 2016 and Office
Online Server. It attempts to load the image, but then disappears.
Turning Download Domains off and everything works fine.
I have read about Google and Yahoo's SPF, DKIM and DMARC email
requirement in Q1 2024. What about DKIM support in On-Premises Exchange
Server? This new email requirements from Google and Yahoo include both
SPF and DKIM records for authenticating email-sending domains, a DMARC
record for the domain, ...
For cloud-hosted mailboxes that are using 3rd parties email gateways, we
will account (and not inappropriately count) for these scenarios. We
won’t count intratenant mail against the External Recipient Rate Limit
even if it routes out of ExO then back in. We also won’t double-count
messages or recip...
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