Forum Discussion

Maggie Mildare's avatar
Maggie Mildare
Copper Contributor
May 25, 2018

HELP WITH DELAYED MESSAGES

We just switched from exchange on premises to 365. Now we are having problems receiving into owr accounts ex: user1@mydomain , user2@mydomain , , and this only happens from some domains for incoming ...
office 365
Steven Collier's avatar
Steven Collier
MVP
May 26, 2018

In the Office 365 admin, setup, domains is it reporting any errors. I'm guessing there's something wrong with the MX records in your dns setup, but thsat admin screen will check them all for you.

  • Maggie Mildare's avatar
    Maggie Mildare
    Copper Contributor
    May 29, 2018

    Nope, nothing wrong with the MX records. Anyway, I am guessing if there was something wrong with the MX records, then I would have problems with all domainsm, not just a couple,. Did you have a chande to look at the header I sent?

    • Navishkar Sadheo's avatar
      Navishkar Sadheo
      Iron Contributor
      May 29, 2018
      Has perhaps trying adding the sender IP (148.163.156.53) to the IP allow list in the connection filter settings located in the Exchange Admin Centre -> Protection -> Connection filter ?

      It's worth a try.

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