Forum Discussion
angeloforum
Jan 11, 2023Copper Contributor
Mail flow from OnPrem to Office365
Hello everybody, I have a problem and I would like to ask you who are more experienced. I have an onpremise exchange server Exchange 2019 CU9 connected to Office365, the MX record sends mail direct...
Dan_Snape
Jan 11, 2023Bronze Contributor
You should be able to achieve this by configuring your "ExternalMail" send connector with a smart host value that matches your MX record. You could update your hybrid connector to do this, but every time you run the HCW it will update this connector and potentially overwrite the configuration. Ideally you'd create a new send connector and test with a couple of external recipient domains first.
angeloforum
Jan 13, 2023Copper Contributor
Hi Dan,
my record MX is mydomain-com.mail.protection.outlook.com., i put this record in smart host value?
my record MX is mydomain-com.mail.protection.outlook.com., i put this record in smart host value?
- Dan_SnapeJan 18, 2023Bronze ContributorYes, that will be the value of the smarthost for the send connector you are using to send outgoing mail (whether it's for a test recipient domain or all domains) via EOP
- angeloforumJan 23, 2023Copper ContributorHi Dan,
sorry for my delay.
If i have 2 domain (mydomain1 and mydomain2) i need to add in smarthost 2 value? For example mydomain1-com.mail.protection.outlook.com and mydomain2-com.mail.protection.outlook.com
Thx in advance
Angelo- Dan_SnapeJan 23, 2023Bronze ContributorYou should only need to configure the one smarthost value. This configuration is just so that outgoing mail goes to the correct EOP instance. If you have two custom domains added to your tenant, the values you mention above both point to the same EOP instance anyway. It won't hurt to add both, but it won't provide any extra redundancy