Rated 3 out of 5 stars

by mrblack82 on Dec. 15, 2018 ·

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.

Rated 4 out of 5 stars

by Firefox user 15e7f4 on Feb. 28, 2018 ·

Does not work on this beta version.

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

by Philippe Lieser (Developer) on Feb. 28, 2018 ·

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

by Alex on Nov. 29, 2017 ·

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

by ViperGeek on Oct. 24, 2016 ·

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

by Christophe on Oct. 22, 2016 ·

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

by Gary Gapinski on April 30, 2016 ·

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

by Erreu Gedmon on Jan. 26, 2016 ·

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

by albert3858 on Jan. 26, 2016 ·

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). 

by Philippe Lieser (Developer) on Jan. 26, 2016 ·

This is the wrong place to report bugs in the add-on.
Please e-mail me to dkim.verifier.addon@gmail.com 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

by Alessandro Vesely on Nov. 4, 2015 ·

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

by Martin Aschoff on April 21, 2015 ·

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

by HerveRenault on Feb. 5, 2015 ·

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). 

by Philippe Lieser (Developer) on Feb. 10, 2015 ·

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 dkim.verifier.addon@gmail.com.

Rated 5 out of 5 stars

by MozFan on April 17, 2014 ·

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

by Trepliev on March 8, 2014 ·

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

by Michele Locati on Jan. 14, 2014 ·

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

by Ythan on Dec. 17, 2013 ·

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

by joe_mo on Nov. 14, 2013 ·

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). 

Rated 3 out of 5 stars

by Nick222 on July 26, 2013 ·

It wrote:
"DKIM: Message is not an e-mail"

This review is for a previous version of the add-on (0.4.2). 

by Philippe Lieser (Developer) on July 27, 2013 ·

Could you please provide more information, so I can try to fix this?
Best at https://github.com/lieser/dkim_verifier/issues, http://forums.mozillazine.org/viewtopic.php?f=48&t=2704121 or by e-mail to dkim.verifier.addon@gmail.com.

Here some of the Information that would be helpful:
Does this happen with every e-mail, or just one?
If you enable debugging in the options, is there an error message that says “Message is not in correct e-mail format”?
If you now how to, can you look in the profile folder which line ending (LF or CR+LF) is used for the e-mail?
I assume you are using version 0.4.2 of this add-on?

If you have an e-mail without personal information in it, to which this happens, it would also be nice if you could save it (right click and “Save as...”, or in the header “Other Actions” and “Save as...”) and send the file to me, so I can test it my self.
But if you answer all additional questions what appear during testing, it's probably not necessary.

Thanks.

---------------------------------------
Edit:
Problem fixed in version 0.4.3.

Rated 4 out of 5 stars

by romkyns on June 7, 2013 ·

It works!

Looking forward to a more polished UI. In particular, I'd like it to be visible at all times, and to highlight the "From" email's domain as either green (verified), orange (unsigned) or red (verified-wrong).

This review is for a previous version of the add-on (0.3.0). 

by Philippe Lieser (Developer) on June 7, 2013 ·

Your suggestions are added in version 0.4.0. If you don't mind installing a unreviewed version, you can download it already from https://addons.mozilla.org/addon/dkim-verifier/versions/