Gmail – Send mail from a different address or alias on Gmail

gmailgoogle-apps-emailuser-accounts

I'm trying to add an alias to my Google Apps for Business Gmail account following this article:

https://support.google.com/mail/answer/22370?hl=en&ref_topic=3395757

But at the step 5 "Click Next Step >> and then click Send Verification. Gmail will send a verification message to your other email address to confirm that you own it." I'm always getting the following error, no matter what account I try to configure.

Error screen

Is it a new feature of Google Apps for Business? A Bug? What can I do about it?

Best Answer

Looks like this isn't an option anymore:

We rolled out a change for new accounts where if you would like to send mail as from a non-Gmail or non-Google Apps account, you can no longer use the option of Gmail's servers to send your mail.

Any accounts which previously were using Send Mail As via Gmail servers will not be affected, you can keep the previous set up.

Quoted from Google Operating System blog