SMTP issue
We have upgraded our exchange environment from 2013 to 2019. Now we have co-existence environment with 2013 and 2019. We are using f5 as load balancer for email. The problem is that Outlook & web over http is working fine. But secure SMTP (TLS) service for pop & Imap is not working through f5 load balancer. It is working directly through the server. What may be the issue f5 virtual server configuration. I request a kind support from this community. Regards Ashraf