Rated 5 out of 5 stars

This add-on works perfectly, and the developer give support and update it (it is never sure of these times for many add-ons).

This review is for a previous version of the add-on (3.0.0). 

Rated 4 out of 5 stars

Depuis la dernière mise à jour presque tout les messages avec signature DKIM valide auparavant sont maintenant en alerte " La clé de signature non sécurisé (clé trop petite)"

Est ce un bug ou une nouvelle fonctionnalité ? Et comment faire "comme avant" ou avoir une meilleur clé

This review is for a previous version of the add-on (3.0.0). 

This is a new feature (Cryptographic Algorithm and Key Usage Update (RFC 8301)). But you can disable the warning, see https://github.com/lieser/dkim_verifier/issues/141#issuecomment-496317683 for details.

You can also try to report this to the sender, so that they update their key to a bigger one.

Next time please don't use the reviews to report problems. Use https://github.com/lieser/dkim_verifier/issues or write me an E-Mail (in English or German).
See also https://addons.thunderbird.net/en-US/review_guide

Rated 2 out of 5 stars

Unfortunately not (yet?) compatible with the new v68.0 :-(

Will there be an update for the lateste TB version?

This review is for a previous version of the add-on (2.0.1). 

Update: compatible 3.0.0 version is released.
---
There exist a pre release compatible with TB 68: https://github.com/lieser/dkim_verifier/releases/tag/3.0.0pre5

The progress to finalize the release is tracked at https://github.com/lieser/dkim_verifier/issues/115

Next time please don't use the reviews to report problems. Use https://github.com/lieser/dkim_verifier/issues or write me an E-Mail.
See also https://addons.thunderbird.net/en-US/review_guide

Rated 5 out of 5 stars

Работает отлично.
Thunderbird 60.6.1

This review is for a previous version of the add-on (2.0.1). 

Rated 3 out of 5 stars

DKIM for hotmail.com does not work although hotmail has a valid DKIM record.
I guess CNAME entries are not evaluated, that's why.


This plugin is incomplete. It does not evaluate DKIM records correct.

This review is for a previous version of the add-on (2.0.0). 

Rated 4 out of 5 stars

Does not work on this beta version.

This review is for a previous version of the add-on (1.7.0). 

Please don't use the reviews to report problems. Use https://github.com/lieser/dkim_verifier/issues or write me an E-Mail.
See also https://addons.mozilla.org/en-US/review_guide

Have you tried the last pre-release from https://github.com/lieser/dkim_verifier/releases?

Rated 3 out of 5 stars

Not compatible with ARC (Authenticated Received Chain), used by GMail and others.
But very good plugin!

https://dmarc.org/presentations/ARC-Overview-2016Q3-v01.pdf

-- Français --
Non compatible avec le projet ARC (Authenticated Received Chain) qui est utilisé par Gmail, entre autre.
Mais ce plugin reste très utile !

https://dmarc.org/presentations/ARC-Overview-2016Q3-v01.pdf

This review is for a previous version of the add-on (1.7.0). 

Rated 5 out of 5 stars

Nice, easy, unobtrusive way to verify a message's DKIM signature.

This review is for a previous version of the add-on (1.6.1). 

Rated 5 out of 5 stars

English:
DKIM is to email security a little bit like polychrome letterhead for paper mail: it's not the guarantee that the sender is who he claims, but the letter comes very probably from where it claims to be originated.
In this regard, this addon is discrete and effective: it verifies the DKIM signatures when they are present. In my opinion, this really advised security feature should be included in Thunderbird for all users automatically.
---
Français:
DKIM est au courriel ce que le papier à entête en couleur est à la correspondance papier: ce n'est pas une garantie sur l'identité de l'expéditeur, mais c'est une indication que le courrier vient très probablement de là d'où il prétend venir.
Cette extension est discrète et efficace: elle vérifie la signature DKIM lorsqu'elle est présente. Elle contribue ainsi à la confiance numérique et devrait à mon avis être intégrée d'office dans Thunderbird pour tous les utilisateurs.

This review is for a previous version of the add-on (1.6.1). 

Rated 5 out of 5 stars

Provides an easy way to view detailed information about a message's DKIM information and verification. Invaluable if one is diagnosing DKIM message signing and handling.

Highly recommended!

This review is for a previous version of the add-on (1.4.1). 

Rated 5 out of 5 stars

I just ran into the same issue as reported by Martin in his review: https://addons.mozilla.org/EN-uS/thunderbird/addon/dkim-verifier/reviews/701478/

I am running DKIM Verifiier 1.3.6, Thunderbird 38.4.0, Fedora 22. Unchecking General:DNS:Get DNS servers from OS configuration fixed it. (Thank you Martin!)

Possibly related, my resolv.conf is constantly being changed by connecting/disconnecting to VPNs.

Thank you Phillippe for this add-on, it should be part of Thunderbird by default!

This review is for a previous version of the add-on (1.3.6). 

Rated 3 out of 5 stars

Works perfectly with other domains, where results match with online DKIM verification tools. However, with our own domain (which passes all DKIM online verification tools) it returns the error "Invalid (DKIM key is ill-formed)" on mails sent internally.

This review is for a previous version of the add-on (1.3.6). 

This is the wrong place to report bugs in the add-on.
Please e-mail me to [email protected] or open a issue at https://github.com/lieser/dkim_verifier/issues.

Needed detail are at least your domain and used selector (to get the DKIM key). Best would be to provide an affected e-mail as a saved .eml file.

Rated 3 out of 5 stars

Reading the Authentication-Results header should be the normal behavior, since DKIM was designed to be verified by the receiving server. However, each server should have its own settings and policies (for example, some servers don't bother writing results for failed signatures, since they should be treated as non-existing.)

This add-on highlights those results by reporting them on the message window, along with From:, Subject:, and To:. Kudos for that!

Doing the crypto is good for servers that don't do it themselves, and for manual action. Such late verification may fail for old messages.

This review is for a previous version of the add-on (1.3.6). 

Rated 5 out of 5 stars

Great tool, should be a default feature of Thunderbird!

This review is for a previous version of the add-on (1.3.3). 

Rated 4 out of 5 stars

I had to uncheck the "Use OS DNS servers" setting (loosely translated from French) because on my Ubuntu 14.04 the local cache resolver "dnsmasq" does not answer, as I read in the console :

2015-02-05 18:40:21 DKIM_Verifier.JSDNS INFO Resolving 20120113._domainkey.gmail.com TXT by querying 127.0.1.1

2015-02-05 18:40:21 DKIM_Verifier.JSDNS DEBUG 20120113._domainkey.gmail.com/TXT: No answer, no authority to recurse on. DNS lookup failed.

Once I uncheck this, it works.

This review is for a previous version of the add-on (1.3.1). 

Unfortunately I am unable to reproduce this on my Ubuntu 14.04 installation. If you are interested in trying to find the problem please write an e-mail to [email protected]

Rated 5 out of 5 stars

Works flawlessly.
Nice set of options.
Outstanding personal support from the author.

This review is for a previous version of the add-on (1.0.5). 

Rated 5 out of 5 stars

Thank you very much for this addon. I searched for this for a long time.

This review is for a previous version of the add-on (1.0.5). 

Rated 5 out of 5 stars

Really useful to debug server configurations and to be more sure about certain emails

This review is for a previous version of the add-on (1.0.4). 

Rated 5 out of 5 stars

Awesome! Works exactly as advertised. This functionality should be included in Thunderbird by default.

This review is for a previous version of the add-on (1.0.3). 

Rated 5 out of 5 stars

This is great! As a sysadmin I'm just curious what other domains are using dkim and how. This makes easy to see. I like it even better with the options set to (i) highlighting on, even for unsigned emails (I make 'em pink); (ii) and display-even-when-testing on (many big domains leave testing on, e.g., comcast); (iii) show DKIM header when an email is viewed, so that you affirmatively get a message even for unsigned emails. So I'd move to make those the defaults. Separately, note to the developer since it might be in your skillset, if you created a DMARC filter extension (i.e., send to junk those messages that fail senders DMARC policy) for Thunderbird that would be bomb. It's probably best done by the MTA, but a client side options is always neat to have.

This review is for a previous version of the add-on (0.6.0).