[GH-ISSUE #151] Exchange DKIM signer not signing #116

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opened 2026-02-26 10:36:02 +03:00 by kerem · 0 comments

kerem commented

2026-02-26 10:36:02 +03:00

Owner

Originally created by @Lud3rik on GitHub (May 7, 2016).
Original GitHub issue: https://github.com/Pro/dkim-exchange/issues/151

Versions

Windows Server Version: Windows Server 2012 R2 Datacenter
Exchange Version: Exchange 2013 -- > 0.1 (8.0.535.0)
Installed DKIM Exchange Version: 3.0.3

Description

Exchange is not signing my mails with DKIM. The settings are loaded on 1 domain.
When I check, I see in green letters DNS record public key is correct.
I have done my record with the selector default.

Steps to Reproduce

Install Exchange DKIM Signer on Exchange 2013
Generate your keys with RsaSha256
Configure selector default and sub.yourdomain.com
Deploy your public key on your favorite DNS registrar
Validate your record in the Exchange DKIM Signer console
Check in the Event Log that your settings are loaded
Send a mail to mailtest@unlocktheinbox.com
Receive some bad news like :
Publication: RFC 6376
DKIM Check
Tag Value
Signature Found: Not Found - Learn how to set up DKIM by clicking here: DKIM Instructions

Expected behavior: [What you expected to happen]

DKIM Signature should be validated

Actual behavior: [What actually happened]

DKIM Signature is not validated as the software is not working properly.

That you for your help

Originally created by @Lud3rik on GitHub (May 7, 2016). Original GitHub issue: https://github.com/Pro/dkim-exchange/issues/151 ### Versions - **Windows Server Version**: Windows Server 2012 R2 Datacenter - **Exchange Version**: Exchange 2013 -- > 0.1 (8.0.535.0) - **Installed DKIM Exchange Version**: 3.0.3 ### Description Exchange is not signing my mails with DKIM. The settings are loaded on 1 domain. When I check, I see in green letters DNS record public key is correct. I have done my record with the selector default. ### Steps to Reproduce 1. Install Exchange DKIM Signer on Exchange 2013 2. Generate your keys with RsaSha256 3. Configure selector default and sub.yourdomain.com 4. Deploy your public key on your favorite DNS registrar 5. Validate your record in the Exchange DKIM Signer console 6. Check in the Event Log that your settings are loaded 7. Send a mail to mailtest@unlocktheinbox.com 8. Receive some bad news like : Publication: RFC 6376 DKIM Check Tag Value Signature Found: Not Found - Learn how to set up DKIM by clicking here: DKIM Instructions **Expected behavior:** [What you expected to happen] DKIM Signature should be validated **Actual behavior:** [What actually happened] DKIM Signature is not validated as the software is not working properly. That you for your help