[nelsonandre]

Hello all,

I have the need to sometimes send emails to an address with a sub domain such as [email protected]
As soon as I write the address it turns red and says the domain is invalid.
I'm able to send emails to all the other addresses I tried.

Any ideas?

[saudadeii]

You're missing the .com or other top level domain name (.org, .gov).

So it should be [email protected] (or org, .gov, or whatever)