Unable to send mails fro QB

Hi there, SujathaK.

Let me help and make sure you'll be able to send those mail in QuickBooks Online.

We can perform troubleshooting steps to fix any underlying browser issue that prevents you from sending those mail.

We can start by accessing your QuickBooks Online account in a private window and see if you can send it without any issues. Use this keyboard shortcuts below to open one:

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

If you're able to send those email, then that's good. You may go back to your regular browsing window and clear it's cache. This will remove outdated temporary internet files that can cause minor browsing issues.

You can also check and use other supported browsers that works better with QuickBooks Online.

Let me know how it goes or if you still have follow-up questions about it. Have a wonderful day!