Recently I had a client come to me that wanted assistance with their deliverability. They are in the business of sending online greeting cards, and wanted to be able to “spoof” or change the “from” line in their emails to be the actual email address of the person sending the card. So, for example, if a person who uses the email address user@example.com, that email address would actually show as the “sender” – rather than the sending address of the greeting card company.

While there are plenty of companies out there that either do this currently or would like to do so with their mailing, what they don’t realize is using this technique could potentially break any authentication methods they have implemented.

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