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Cannot send iMessages on my Mac but can receive them

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I changed my main Apple ID email address yesterday, and also changed from my iPhone 5C to a iPhone SE.

Once I did changed my Apple ID email address, I had to sign out of all my devices, and sign back in with the new email cause I was getting error since the apps were trying to log in with the old email.

After that, everything was working on all devices except 1 thing. I cannot send iMessages from Messages on my Mac. iMessage is working on my iPhone correctly. I can receive iMessages on both Mac and iPhone. I can even send SMS (non-imessage) messages on my Mac. Really, all I can't do is to send iMessages from the Mac.

What I did :

- Restarted my computer
- Log out and back in of Messages on the Mac
- Log out and back in of iCloud on the Mac
- Deleted Messages related Preferences files
- Deleted Keychain passwords that were using the old email

Not sure what else to try. Any help would be greatly appreciated. Thanks!

I'm running El Capitan by the way (10.11.4) on a 2012 15 inches Macbook Pro.

MacBook Pro, iOS 9.3.1

Posted on Apr 11, 2016 6:18 AM

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111 replies
Question marked as Helpful

Apr 16, 2018 4:05 PM in response to marclarin

So I tried everything on all 4 of these pages and none worked. Finally I contacted Apple Support and after getting passed to a 2nd level, having them have me capture some logs and have them analyzed, I got it fixed.


Close all applications, specifically Messages

Reboot

Spotlight search for Keychain Access

Search in Keychain Access for - com.apple.facetime

Right click on and delete - com.apple.facetime: registrationV1

Reboot

Launch Messages


This worked immediately for me.


Hope this might help someone else!

Apr 20, 2018 7:52 AM in response to cabrownfromottawa

Another success -- my husband lost the ability to send iMessages from his computer two years ago. Deleting the com.apple.facetime: registrationV1 password worked for him, too. (I am now giving him grief for not being able to fix this himself -- his reaction was to install WhatsApp and grumble about Apple being idiots. My reaction was to track down a solution, and roll my eyes at Apple when I saw what it was. Keychain is a train wreck...)

May 23, 2018 4:35 PM in response to marclarin

Midonz solution worked. I had the same issue when upgrading.


by midonzFeb 20, 2018 12:07 PM in response to Ralph Johns (UK)


Try this:


1. go to Keychain Access app in the Utilities folder

2. under the File menu, choose *Lock Keychain "Login"*

3. go to the File menu again and choose *Unlock Keychain "Login"*

4. enter your password when prompted.


I'm on Sierra. I could receive messages on all my devices but after an OS security update I could not send or reply in Messages on my laptop. I finally got a useful error message (STKeychainErrorDomain error -25299) from a third-party app (Airmail3) indicating it had a problem accessing the Keychain. They sent me to a lengthy Apple help forum about rebuilding my Keychain. I started with the easiest possible suggested fix (above) and (ridiculously) it solved all my problems.

Cannot send iMessages on my Mac but can receive them

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