New answers tagged smtp
This question has been answered here, but I'm unable to close it because of the bounty. In short, you may use Gmail's SMTP server for your alias address, as long as you have enabled two-factor authentication.
For users attempting to send email from a Google Apps account address via a different gmail address, while avoiding the "on behalf of" issue. Based on this answer, I can confirm that Google requires the following security setting change before you are allowed to "Send mail as" a different Gmail/Google Apps account. STEPS Log into the account whose ...
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