Hello. I have three mailbox servers and one Edge.
The mailbox servers have a purchased wildcard certificate.
After setting up the hybrid configuration, I can't receive emails from EXO and can't send there.
In EXO in the connector to send to my servers, I turned off TLS verification. The emails started coming from EXO.
But I cannot send to EXO from my local servers.
When I set up the hybrid configuration, Edge uses the certificate from the mailbox servers. But I get an error when I send email to EXO:
[{LED=451 4.4.395 Target host responded with error. -> 421 4.4.1 Connection timed out};{MSG=};{FQDN=resoleasing-mail-onmicrosoft-com.mail.protection.outlook.com};{IP=104.47.14.36};{LRT=16.09.2021 11:50
:19}]
- As I understand it, I need to install a commercial certificate on the SMTP service, but then I can't do the subscription since I can't use one generic certificate.
Do I understand correctly that when using a hybrid configuration with Edge, I need to buy 1 more certificate or what should I do ? I can't use the one generic certificate I bought and use on the mailbox servers ?
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