Why Can't I Change the 'From' Address When Using Gmail's SMTP Server?

Changing the From Address Using Gmail SMTP Server

Gmail's SMTP service provides a reliable way to send emails, but users often encounter challenges when trying to change the From address. Unlike traditional SMTP servers, Gmail rewrites the From header to ensure consistency with the sending Gmail account. This measure is in place to prevent spam and protect the integrity of the service.

Why You Can't Change the From Address

Google's SMTP service is not designed to be a relay or open service. Allowing users to modify the From header would compromise Google's reputation with spam services and open up opportunities for abuse. As a result, Google maintains control over the From address to verify sender credentials.

Alternative Solutions

Since modifying the From address is not possible using Gmail's SMTP service, you should consider alternative solutions:

• Set up a Dedicated Gmail Account: Create a specific [email protected] account for sending emails from a desired address.
• Use Gmail for Domains: If you own the domain, take advantage of Gmail for Domains and set up an [email protected] account.
• Utilize External SMTP Services: Consider using third-party SMTP services that allow you to specify custom From addresses. Services like Mandrill and SendGrid provide robust email delivery capabilities with customizable options.

Update: June 2015

Although it was suggested that Gmail allows sending via different addresses, this functionality is limited to the Gmail web app and requires an external SMTP server, which is not applicable to the original question.

Update: November 2013

Google has discontinued its free Gmail for Domains service. There are numerous other free email delivery services available, such as Mandrill, which offer generous free quotas and advanced features for transactional email needs.

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