Add-ons
Sender Verification Anti-Phishing Extension 0.9.0.2 Requires Restart
by Joshua Tauberer
Protects you from phishing attacks by verifying the From: address domain name of emails as you read them. Sender Policy Framework (SPF) and DNS-based reputation lists are used.
![[Warning]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=58a99cbb-667a0970)
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About this Add-on
This is an extension that reports, when possible, whether the sender shown in the From: header was actually the sender of the email. In fact, forging the From: address is possible! This is intended to be a tool to identify phishing attacks, fraudulent emails asking for your sensitive data, so that you don't fall prey. The extension uses Sender Policy Framework (SPF) (albeit in a nonstandard way) to verify the sending domain and SURBL, Spamhaus, DNSWL, and SenderScoreCertified for reputation information on the domain.
