Below are the instructions to set up the ability to Send As your @exprealty.com alias in Gmail.
Login to your gmail account
Click on the gear icon at the top right and then click on Settings in the drop-down.
Click on Accounts and Import and then click on the Add another email address in the section labeled Send mail as:
Your first and last name should be in the first box. Enter in your exprealty.com email address in the second box. Click Next Step.
Make sure the Treat as an Alias box is checked.
You will enter in outbound.ore.mailhop.org into the SMTP Server box. The password will be the mail server password which is YsioneLerEDEN Do not change any other settings.
A generic server name is auto filled in there, just click in that box and delete it.
Click Add Account
If you copy and paste the password from above please make sure you do not have any spaces before or after the password
If you have successfully entered the above information you will receive an email from Gmail asking you to click on a link to verify along with a code. Follow the directions in that verification email.
Once all steps and the verification email are complete you can now Send As your eXp email by clicking on Compose and in the From: at the top there will now be a drop-down where you can toggle between your eXp email Alias and Gmail