I actually did this earlier today for two clients. Unsure if it will work yet or not.
Likely will know tomorrow.

For one client, they all connect through a terminal server, so I did it manually on that server.

The other client they all have it running locally on the workstation, connecting back to a local database server.

I'm trying to set that via Group Policy for the latter.

I will report back on if this works

Sorry, wouldn't let me attach at first and then both my messages went into the "moderation queue"

Another quick update:
I saw above that Intuit mentioned 64-bit Outlook.

I tested on a machine and confirmed it had R18_56 with 32-bit Outlook, and the option did not show up.
I uninstalled Office 365 and re-installed as 64-bit, and it then DID show up in Send Forms.

So it seems R18_56 dropped support for 32-bit Office, at least with Outlook??

That is a major breaking change that needs to be communicated before pushing out, and ABSOLUTELY needs a change log or a notice of some sort?????

Verified Solution: First, this is insane. QB charges way, way, too much to have this type of ridiculous problem and not inform anyone. Second, the send form area should at least have a message that says "Outlook 32 bit has been removed - please use 64 bit". That would have saved us all a great deal of time and effort.

I was seeing this with multiple clients across random computers and sure enough it's related to the 32 bit Office applications. Repairing QB errors on most of mine for some reason...regardless I tried absolutely everything from new profiles to repairing 365 and quickbooks and the problem persisted.

I uninstalled Office 365 32bit and reinstalled 64bit and boom...done. Took 5 minutes. No further issues for a week now. Thanks Intuit for f***** up my holiday. For those who might wonder why some random computers are still on 32 bit 365 it's due to the fact we image computers when upgrading hardware instead of reinstalling from scratch. If the user is experiencing zero problems it's a hell of a lot faster these days to bare metal restore to new hardware and keep going.

I too lost Outlook.  

When I ran the repair function, I get error message 1334 that says 'The file header_ef_all.gif cannot be installed.  Insert the QB CD and retry.'  I have no cd.  I downloaded the program.  Do I need to burn a cd of the downloaded installation files?

How old school.

Please help.

Thanks.

Hi there, FLBill. Thank you for bringing this to our attention, and I appreciate the effort you’ve already put in, such as running the repair function.  

The error message 1334 typically occurs when QuickBooks is unable to locate certain installation files required for the repair process.

Since you’ve already downloaded QuickBooks, there’s no need to burn a CD for the files.  Instead, you’ll need to uninstall and then reinstall QuickBooks Desktop to resolve the issue.  

You can refer to this article for detailed steps and guidance in fixing error 1334 under Solution 1.  

If you have any additional concerns related to QuickBooks, please feel free to reply here. We’re always happy to help.

@CublaInc Yeah I'm with you.
64-bit definitely does fix it, and I am very frustrated that there is still 0 communication on this from Intuit.

It shouldn't take a handful of users on a community thread to determine this, after a random update released right before Christmas, with no change log.

On one of our computers, we have 365 64bit installed and it still has the same issue, every morning we have to do a install repair to get it to show up in Send Forms, However, one of our other computers with 365 64bit has worked with no issues.

On one of our computers, we have 365 64bit installed and it still has the same issue, every morning we have to do a install repair to get it to show up in Send Forms, However, one of our other computers with 365 64bit has worked with no issues.

@labels1 Well that's odd, and kinda breaks the theory a bit.

Can you check what build of Outlook is on each machine?

This computer didn't happen to have office 365 32bit on it before the 64bit? We had a few like this...where the original installation was 32bit and even though we uninstalled and reinstalled 64bit it never acted right or thought it was 64 bit. I believe junk remains and causes problems so you may be looking at a format...

Hi there, labels1.

I recognize the effort that goes into troubleshooting issues like this. Since your Outlook is 64-bit, I recommend reaching out to our support team, who have access to advanced tools and can resolve the issue efficiently. By reaching out for support, you can minimize delays, strengthen communication, and ensure your concerns receive timely attention.

To get started, follow these steps:

1. Open QuickBooks Desktop.
2. Go to the Help menu and select QuickBooks Desktop Help/Contact Us.
3. Use the Search questions, keywords, or topics field to enter your question.
4. You’ll get a list of related articles.
5. If you don’t get the answers you need, select Contact Us.

Also, please note that they're available from Monday through Friday from 6:00 AM to 6:00 PM Pacific Time, and on Saturdays from 6:00 AM to 3:00 PM PT.

For further assistance, please don’t hesitate to click the Reply button. We’re here to help. 

For the entire month of December the latest patch has broken our Outlook as well.

I've had to do a repair install AKA downgrade 5 times now for weekly payroll emails.  Which is more annoying with payroll update OT tracking nonsense.

It's a global program problem with both QB 2023 + 2024 on their respective latest patches.

We are on Quickbooks 2023 Desktop.  Office / Outlook 2019 32 bit.

R17_19 = Working Outlook

R17_33 = Broken Outlook

QB 2023 latest version is the R17_33.  Doing a repair install downgrades it to R17_19.

Which then has to download payroll tax tables again.

THEN THE ABSOLUTE BS OF INTUIT FOR A COMPANY'S IT DEPT. TO NOT BE ABLE TO CONFIGURE UPDATE SCHEDULE.  ONLY WAY I KNOW OF IS TO HACK C:\PROGRAMDATA\INUIT FOLDER TO READ ONLY BUT THIS IS EVEN FURTHER COMPLICATED AS FOLDERS WITHIN THERE ALSO GET THEIR PAYROLL TABLE UPDATES.  THIS IS WHY I HAVE REPAIR INSTALLED 5 TIMES.............

INTUIT ENGINEERING - FIX THE OUTLOOK INTEGRATION.

AND RETURN PROPER SOFTWARE ADMINISTRATION - AKA THE IT DEPT DECIDES WHEN TO UPGRADE.  OR IF YOUR GOING TO SHOVE UPDATES TO CUSTOMERS - UMM I DUNNO - QUALITY CONTROL PRIOR TO PATCH RELEASE.

THE AUDACITY OF INTUIT AUTO UPDATE AND TIME BOMB COUNT DOWN "X AMOUNT OF TIMES TO RUN"

My version is over 20 years old I don’t have disc I would like to put this on an online account. It is run thru account t and I only have 2 to 3 entries a month

Thank you for joining the thread and informing us about your plan of moving your entries, Srathi.
 

Since you don't have the disc for your version that is over 20 years old and want to move your entries to QuickBooks Online (QBO), you can use a trial version of QuickBooks Desktop (QBDT) to do so. Here's the link: Download a 30-day trial of QuickBooks Desktop.
 

You can also use the online migration tool. If you don’t have QuickBooks Desktop 2022 or newer, open the online tool for your version, then upload your company file:
 

a. QuickBooks Pro/Premier

b. QuickBooks Enterprise

c. QuickBooks for Mac (Note: You must first convert your Mac file to a Windows file).

Please ensure you have a backup copy of your old QBDT file (with entries). Also, make sure you have a QBO account before migrating, and take note that you have 90 days from the time you create your QuickBooks Online account to move your data.

Here's how to migrate using the trial version or online tool:
 

1. Go to the Company menu and select Move to QuickBooks Online.
2. Click Export Your Company File to QuickBooks Online. Follow the on-screen steps to log in to your QuickBooks Online account and select Get started.
3. You'll see a personalized checklist of all tasks required to prepare your file:
   • Review each task and the associated data presented by the tool.
   • Take action on each task individually or click Complete All to resolve multiple tasks at once.
4. Once you've completed everything on the checklist, select Continue.
5. On the “Let’s bring your data to QuickBooks Online” screen, choose how you want to migrate your data.
6. Select Yes, sign me in, then click Continue to sign in with your QuickBooks Online account.
7.  Sign in using the user ID and password for your QBO subscription.
8. You’ll see your QBO company name(s) and subscriptions listed. Pick the company to migrate your data to.
9. Hit Continue, then click Export. A progress bar will appear as your data is transferred to QBO.
10. If your QuickBooks Online account already has data, QuickBooks will ask if you'd like to replace the existing data.
    • Be cautious, as this action is irreversible and permanently deletes the existing data.
    • If applicable, select Agree, then Replace.
    • Confirm by clicking Yes, go ahead and replace the data, then select Replace.
     

You can check this article for other details you need to know before you migrate to QBO: Move your QuickBooks Desktop file to QuickBooks Online.

Please leave us a response if you have other questions or concerns.

I removed Office from the computer running 64bit Office (it had the same issue), reinstalled it, and that machine is now working again with full Outlook functionality. That makes me think remnants of an old 32bit Office install were still causing a conflict.

On our other machines that are still on older 32bit Office, the problem remains unless we downgrade QuickBooks. What’s strange is that Excel exporting still works on those computers only Outlook is impacted.

Honestly, it feels like QuickBooks and Microsoft are nudging customers into upgrading everything (Office and Windows 10 → 11). Microsoft extended Windows 10 support for another year, but it’s pretty clear 2026 will come with a big push to upgrade everything.

@labels1 Just want to note real quick that Windows 10 support has not been extended for year, rather, you have the ability to purchase Extended Security Updates (ESU) for Windows 10 (or there's some way to do it for free for Home users and a Microsoft account).

Has anyone seen any update on this issue?  Has Quickbooks pulled the R18_56 update yet?

Thx!

Hello there, Joe8888888. 

For the most up-to-date information about the older Outlook version not working in QuickBooks, and whether updates like R18_56 have been removed or changed, we recommend contacting our live support team directly.

They'll provide real-time updates and help you with any concerns related to this.

Here's how you can contact them:

1. Go to Help, then select QuickBooks Help.
2. Select Contact Us.
3. Enter your issue.
4. Hit Continue.
5. Select to chat with us or Have us call you.

Please take note of their support hours so you'll know when agents are available.

If you have other questions related to QuickBooks, feel free to Reply to this post. 

@Joe8888888 - No. There's still no update, fix or still any communication from Intuit on this

This issue isn't tied to the configuration of a individual user.  Why do we have to contact support individually to find out if or when this issue has been resolved?  This is affecting a large section of your user base and this is a support forum.  Can you please just let us know the status in this thread?  Why be obscure about it?

It appears that they fixed this issue as of this morning with version R18_59.  We are using QB 2024, hosted by RightNetworks with Outlook 32-bit and it is now allowing me to select Outlook as a send method.

Release 18_59 worked for me too last week. But today my Outlook is not working again. I was happy.

Now with QB desktop Release R18_59 exporting reports to Excel no longer function. Only can export to csv. Not sure if this is related to the 32 bit issue; which is what I have for both Outlook and Excel.