Why Doesn't My Code Send Emails From My Desired Address Using Gmail's SMTP Server?

How to Maintain Desired 'From' Address When Utilizing Gmail SMTP Server

When attempting to send an email using Gmail's SMTP server, you may encounter the issue of the email being sent from your default Gmail account instead of the desired 'From' address specified in your code.

The Underlying Limitation

Unfortunately, Google has implemented a policy that rewrites the 'From' and 'Reply-To' headers in all emails sent through its SMTP service, forcing them to reflect your associated Gmail account. This restriction stems from the intent of the SMTP feature as a private tool for personal email delivery, not as an open or relay service.

Alternative Options

To overcome this limitation, you can consider alternative solutions:

• Use a Dedicated Gmail Account: Create a separate Gmail account specifically for sending emails from the desired address.
• Use Gmail for Domains: If you own the domain from which you wish to send emails, set up a free Gmail for Domains account and create an email address within that domain.

Additional Information

• Google does allow sending emails through different addresses, but this functionality is typically limited to the Gmail web application and utilizes your existing external SMTP server, which differs from the original question.
• Mandrill, a reputable transactional email service provider, offers free sending limits and provides robust features for handling large-volume email delivery.

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