My exchange server won't send emails externally. I can send them to other users in active directory and I can receive them, but they won't send out. I have the following DNS Records:
Internal DNS Server:
www Host (A) 126.96.36.199
mail Mail Exchanger (MX) 10.1.10.50
owa Mail Exchanger (MX) 10.1.10.50/OWA/
My external DNS from Network Solutions is:
www 7200 188.8.131.52
@ (None) 7200 184.108.40.206
* (All Others) 7200 220.127.116.11
mail.delranems.org 7200 18.104.22.168
And the External MX Mailserver DNS:
For my Organization Configuration -> Hub Transport -> Send Connectors, I have Default Send Connector Enabled. My FQDN under the General tab is mail.delranems.org. Address Space is Type = SMTP, Address = *, Cost = 1. Network Tab = User domain name system (DNS) "MX" records to route mail automatically. Source server, I have DES-DC1, Site is delranems.org/Configuratio..., Role = Mailbox, Client Access, Hub Transport.
My firewall I have Port 25, 80, 443, 53 Open.
Any ideas why It isn't sending mail?