Login to your gmail account and from the settings button on the right corner, click on settings, then click on the Accounts and Import tab as shown below.
From the Send mail as tab, click on Add another email address you own as shown below.
SMTP and Port stays the same, but enter your username, email address, and password. Hit add account button.
On the next window, enter email address and hit next
leave as import emails from mu other POP3 account and hit next
enter the username which is the full email address and password
enter citadelministries.net for POP server
check to always use SSL
hit add account
On the next window (Your mail account has bee added), confirm yes to be able to send mail as your email address
Next window leave defaults
Use port 465
Finally, On the next window enter the verification code you got from Google mail and verify you have access to your email address
If you are only configuring your gmail account to send your other email account email, the configuration window is similar to the one above
Also, check the box the reads:Reply from the same address the message was sent to
In order to send and email as the newly added email address, compose a new email and select the new email account on the From box. In the background, Gmail will contact your risingdc.com mail server and ask to send it.