Email server DNS error

[ahalltp075220]

Hello.

I've been working on a school project and have encountered this error while configuring and testing mail server.

I can only send emails to devices within the same LAN.

Could anyone offer some help and guide me through this issue.

[coff8199]

I am not aware of your specs., but if it involves networking between switches and routers, vlans, you might want to look into encapsulation dot1q

[ahalltp075220]

ok, thanks!