Hi everyone,
I have been built my home lab with Exchange server. I can receive emails from outside, but I cannot send emails to outside. When I send email to domain email address, everything is ok.
- I have been purchased domain name;
- My router has a public IP address;
- Ports 25 and 443 are forwarded on my router to mail."domainname".com;
- On my domain name registrar's DNS servers, a MX record was created for mail."domainname".com;
- On my domain name registrar's DNS servers, a CNAME record was created for mail."domainname".com points to "domainname".com
- On domain DNS server, a CNAME record was created for mail."domainname".com and points to mail server FQDN.
- My Exchange server holds both Mailbox and Client Access roles.
Help me please. I cannot find any lab guide that can help me to check what is wrong with my "outside" configuration.