thank you for posting this! I deleted the body of my email and the invoices finally emailed.

I'm also getting "undeliverable" invoice emails bounced back...AGAIN!  I've had no issues with this until last month.  I had to call support and upgrade my membership to "pro plus" to include tech support.  She then helped guide me through fixing it but have no idea how to replicate her instructions; click here, click there.  And it's now happened again!  I know it's not the customer email addresses because I've been using the same customer email addresses for years that's defaulted in their customer account.  I've also did a test and sent an email to my personal email address and it still got bounced back.  Please help.

This didn't work for me.  :(

I also just tried resending the invoices; deleted the text in the body of the invoice email.  :)  It took a few minutes for the email to come through to my personal emails that I was using to test...but it worked!  As excited as I am to discover this fix to this problem so I can now send out customer invoices thru QB email; QB still needs to fix this. :(

Thanks for posting this! :)

I tried a 2nd time; deleting the text in the body of the email.  I didn't think it worked at first because it took a while for the email to come through the other side.  By the time I tried it a 2nd time, the 1st one came through to my test emails.  Thanks again!

I am using QB 2017.  All of a sudden emails for Proposals are coming back "undeliverable".   I have been using this feature for years with no problem.   Is there something new in settings I have missed.  I use hotmail and I believe maybe it has changed to Outlook.  However when I check Outlook in send forms it doesn't give me any options?  What is wrong?

I'm here to ensure you're able to deliver your emails, @Silsal.

There are possible reasons why you're QuickBooks isn't responding while sending an email. Let's perform some troubleshooting steps to fix this issue.

1. Ensure that QuickBooks isn’t running as administrator.
2. Verify if your email preference is set correctly in QuickBooks.
3. Set your email preference in Internet Explorer correctly.
4. Test and repair your MAP132.dll by emailing a document from Microsoft Word.
5. Reinstall QuickBooks using Clean Install.
6.  Lastly, you may consult with your IT professional so you'll be guided properly in repairing Outlook.

For more detailed instructions, you may refer to this article: QuickBooks is unable to send your emails to Outlook.

Otherwise, try to delete the text in the body of your invoice. Then resent it back to your customers.

If the error persists, I’d suggest contacting our Technical Support Team. A specialist will be able to further check on the root cause of your concern via a secured remote access session.

Additionally, let me add this guidance in setting up your email service in QuickBooks Desktop. Consider checking out this article: Connect your email to QuickBooks Desktop.

Reach out to me in the comment below if you have any other issues or concerns, and I'll get back to you as soon as possible. Have a good one!

Worse than coming back undeliverable, my invoices and statements show that they have been sent in QBO, but they have not!  They never arrive at the destination.  I have tried emailing things to myself at my own address from QB but nothing.  It says it was sent but it never arrives. (Not in spam, not in anywhere.)

This only happens sometimes and to certain customers, but not others.  It is random and there is no way to know whether the invoice or statement was delivered or not short of calling or emailing the customer.  This is very unprofessional.

I logged a call to QBO, was told "they are working on it", they could not say when it would be fixed.

In  the meantime they told me to print my invoices and statements and send them manually from other software!   That was the whole point of buying QB  - so that it would do that for me!

So angry and frustrated.

I, too, have been getting the invoice bounced back for no reason.   This need to be fixed ASAP!   My alternative solution is to click on the action with the gear next to it while looking at the invoice page.  click on the arrow below and select "share invoice link", copy it then paste it to your regular email account...yahoo, gmail or whatever.  

This is ridiculous that we have to do this.   We should all receive a few free months of QBO for our inconvenience!!

I am stuck in the same trouble for 3 days.

I am stuck in the trouble for over 3 days. I solved the problem until I found your post. Thank you very much.

I've been able to email my invoices by deleting the description box in the body of the email. Leave the email body completely blank. However, I am wondering why only one of my client files can not send the invoice with an email body full of text while others can. 

I tried to reduce the content of the text in the body of the email, then delivered my invoice. I am still wondering why a non-reduced version can be sent through others' account

I appreciate the additional information you're sharing with us, Julius.

There are a couple of reasons why an email from QuickBooks is not being sent to customers. This includes browser issues, company settings, and servers or domains that are not configured to accept or send emails from QBO. 

You mentioned that the issue is only happening in a specific client's file. Most probably, it has something to do with the email address in the settings section since other accounts were able to send transactions successfully. I'll share some steps on how to resolve issues with undeliverable emails in QBO. 

If the client has recently imported QuickBooks Desktop data into a QuickBooks Online company, you may need to reset your email address. Here's how:

1. Go to Gear or Settings ⚙ icon and select Account and settings.
2. Proceed to the Company tab, then select the edit icon in the Contact info section.
3. Review each email address and make changes as needed.
4. Click Save, then select Done.

If you're still getting the same result,  clear and then re-enter your email address in the same window. Then, send yourself a test transaction without clearing the body of the email.

Here's an article for more details about the steps that I've shared: 3 Solutions For You When Customers Aren't Receiving Your Emails.

Please share updates on this thread if you're able to send invoices without any issues. We'd want to make sure everything is sorted out. 

I made a try according to your instruction, but it did not work. 

Thanks for trying the resolutions provided in this thread and updating us with their results, Julius.

Since all solutions didn’t work, it would be best for you to contact our support team. They can check the issue further and help you find more fixes.

Here’s how:

1. Open your QuickBooks Online account.
2. Select the Help (?) menu.
3. In the Assistant window, type in “Talk to a human” in the field.
4. You can enter this statement in the field “Client's file can't send an email to customers,” then go to the Contact option.
5. Choose a way to connect with us:
   • Start a chat with a support expert.
   • Get a callback from the next available expert.

Here are some resources to help you learn more about managing sales and expense transactions in the program:

• Customize invoices, estimates, and sales receipts
• Email or print multiple sales forms
• Email receipts and bills

The Community team is always here to help if you need further assistance handling your transactions. Just add them to your reply below. Keep safe always!

I am also having the same issue of an undeliverable with an existing customer that had been receiving my invoices for years at the correct email address. Suddenly an invoice sent to her says undeliverable. Not only that, but it says that the invoice is both undeliverable and customer viewed it on certain dates even though customer did not receive any of the three times I resent the invoice, which I confirmed with customer. Please advise. 

Thanks for joining this thread, mdjd.

I've reviewed our investigation (INV-58793) about emails showing an Undelivered status or Delivery error and can confirm Intuit's Product Investigations team has completed their review.

After reviewing the reports from subscribers, Intuit has concluded that once an email is sent to a recipient and it bounces, the entire email status will become bounced and show as Undelivered or Delivery error.

This is currently expected behavior in QuickBooks and isn't a bug. If an email's status shows Undelivered or a Delivery error, it means it wasn't delivered successfully. You'll want to check their email address and try resending it. Intuit also recommends sending it while using a web browser, instead of from our mobile apps.

There's two main reasons that bounced emails occur:

• The recipient's email address was entered incorrectly.
• There was a temporary issue with your recipient's email server.

Another thing I can point out is if you're emailing emails to multiple recipients at once, and one of the multiple comes back as undeliverable, all of their statuses will show as Undeliverable or Delivery error, regardless of if some of them sent successfully or not.

In the event your customer continues not receiving their emails, but you've confirmed you're sending them to a valid email address they have access to, you'll want to try getting a different email from them to see if they can receive emails there.

If you're interested in Intuit changing this behavior for invoice statuses, I'd recommend submitting a feature request about it.

Here's how:

1. Use the Gear (⚙️) icon, then go to Feedback.
2. Enter your suggestion(s) in the Have feedback? window.
3. If necessary, attach a file with your Camera (📸) icon.
4. Select Next.
   

Your feedback's definitely valuable to Intuit. It will be reviewed by our Product Development team and considered in future updates. You can stay up-to-date with the latest news about your product by reviewing Intuit's Product Updates webpage.

I've also included a few detailed resources which may come in handy moving forward:

• Undelivered Invoices
• Track invoice statuses
• 3 solutions for when customers aren't receiving your emails

Please feel welcome to send a reply if there's any questions. Have an awesome Tuesday!

HI ZackE- thanks for your reply. I'd like to report ongoing issue re: Undeliverable status of an invoice that has not been resolved. I would like to submit a report below for the team to please investigate. Thanks!

8/24/22 4:33pm EDT - I sent invoice to verified correct customer email address via QB Online web browser Safari. System marked invoice as undeliverable. However, system also says customer viewed invoice 8/24 at 11:56pm EDT, confirmed with customer that they did not receive the invoice and did not view invoice.

9/2/22 2:39pm EDT- I resent invoice to verified correct customer email address via QB Online web browser Safari. Invoice continues to be marked as undeliverable but QB system provides conflicting evidence and reports customer viewed invoice at 9/2 at 2:43 pm EDT, 4:34pm EDT, but customer confirms they did not receive the invoice or view invoice. 

9/9/22 11:10am EDT- I resent invoice to verified correct customer email address via QB Online web browser Safari. Invoice continues to be marked as undeliverable but QB system provides conflicting evidence and reports customer viewed invoice viewed invoice on 9/9 at 1:10pm EDT, but customer confirms they did not receive or view invoice. 

9/12/22 I again triple-verified customer email address was correct (we had been using it in the system for over 5 years without an issue). Furthermore, 

-- 9/12/22, 5:18 pm EDT I resent invoice for fourth time via Quickbooks Online system via web browser Safari. Customer does not receive invoice, checks their inbox, spam and junk folder-- verified that they did not receive invoice.

-- 9/12/22, 5:20 pm EDT I sent a separate non-Quickbooks email to the exact same customer email address (I copied and pasted in that separate email a link to the invoice), customer was able to receive separate non-QB email at this address at this time, proving that recipient email address was indeed correct all along and recipient email server did not have any temporary issues receiving emails. Email address server was indeed functioning at the same time the QB invoice system email had been sent yet the invoice was still shown as "undeliverable" and did go through to customer.

This shows an ongoing problem with the QB online system delivering this particular invoice to recipient (while also incorrectly showing that customer views the invoice when they do not receive the invoice at all), which is not consistent with expected behavior and is not due to 1) incorrect customer email address or 2) temporary issue with recipient's email server.  

Can your team please help / investigate what happened with this invoice in order to prevent it from happening again?

- Why would QB system mark invoice as both "undeliverable" and indicate customer viewed the invoice (when they did not receive the invoice or open it)?

- Why is QB online system invoice emails not going through (even with verified correct email address and when email servers are indeed functioning as proven by nonQB emails going through at the same time)? 

Thank you! Would appreciate your help with investigating this ongoing issue. 

I appreciate you for detailing your experience with undeliverable invoices in QuickBooks Online (QBO), @mdjd.

Let me route you to the best support who can further investigate what's causing your invoices to get undelivered and shows a conflicting status in QuickBooks Online (QBO).

We'll need to collect some personal information to pull up your account and further investigate the cause of your invoice error. With this, I encourage you to reach out to our QuickBooks Support team. They can create a case to initiate an investigation and guide you with a fix. To do this, here's how:

1. Sign in to your QBO company.
2. Go to the Help (?) menu.
3. Select the Search tab.
4. Click the Contact Us button.
5. Enter a brief description of your concern in the What can we help you with? field.
6. Select Continue.
7. Choose a way to connect with us (Send a message or Get a callback).

In the meantime, you may want to check out one of our Help pages as your reference to guide you in managing, organizing, and sending invoices using QBO: Invoices and payments help for QuickBooks Online.

Let me know if you have other concerns about managing invoices and income transactions in QBO. I'll gladly help. Take care, @mdjd.

I’m having same issue. 
invoices are bouncing back with Error 3106 un able to send invoice code. 
I’ve double checked my clients email with him personally. Then I’ve sent him an actual message to his email from my personal email and his email received mail with no issues. 
I have 75 clients. Having no problems with there emails. Just his. 
error 3106 can’t send to recipient or un able to send check email message every time. 

Good day, @Eric7780.

There are times when too much cache accumulated in a browser can cause unexpected behavior with the program. This can be the reason why you're invoices are bouncing back to this client. 

We can perform some basic troubleshooting steps to isolate and fix the issue. To start with, try opening QuickBooks on a private window. This is the safest place to tell if you're experiencing some browser-related issues.

I've added these shortcut keys to open one:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Shift + N

If you're able to successfully send your invoices, you can go back to a regular browser and clear its cache. Alternatively, you can also use a different browser like Google Chrome, Mozilla Firefox, Safari, or Microsoft Edge.

I've also added this reference for more information in managing invoices: Manage invoices in QuickBooks Online.

There you have it. Let me know if you need further help sending your sales transactions. I always got your back!

This is happening to me too. EVERY invoice sent from12/13 is UNDELIVERABLE. It is NOT an error in the customers' email addresses.  WHEN IS THIS GOING TO BE FIXED? THIS IS A KNOW ISSUE.

Saving every invoice as a PDF and then sending them from another email account is time-consuming and a TEMPORARY FIX. You're telling me that in 5 days your engineers can't fix the problem?

FROM QB Support on 12/15:

Good day!
Thank you for contacting us. Your account has been affected by the ongoing investigation. The issue has been reported already to the engineering department, the highest department we have, our back-end team.

Now, they are expediting the process, thus, they are kind of prioritizing the permanent fix of your issue. One of them is already been assigned to work on it.

However, I was advised to close the case I have created based on my level, a tier 1 technical support, since this will create a duplicate entry on their bucket which might lead to the delayed fix due to confusion for, they create their own ticketing too.

Now, with all your permission, I'll be now tagging our case as closed not to cause any delays processing the escalated case. Just want to make sure that everything will be processed as soon as possible.

Also, closing the case will not mean that you won't receive any updates regarding on the investigation. The engineering department will still send an email for any update of the status of the investigation.

We thank you for your patience and understanding. This is in reference to the case with ticket number: 1591876356
Investigation number: INV-71760 

This is a KNOW issue so don't let them tell you that you have an incorrect email address for your customer. Send the invoice to yourself and you won't get it either.