Quickbooks-Avast email problem with Desktop Premier 2020

[CATHERINE136]

We've narrowed the email problem down to AVast, we're having problems sending emails within QB when we upgraded from Quickbooks Desktop Premier 2016 to 2021. We get a pop up error message. we've exhausted all avenues except Avast.  not sure what other Avast settings we should be looking at?? Please advise ASAP
Thanks!
Catherine

[rocksteady]

Hi Catherine
What version of Windows?
What version of Avast, and whether paid or free?
Any other antivirus/antimalware software installed?

You could first try a Repair of Avast.
Menu>Settings>Troubleshooting>[Repair App]

Can you give details or post a screenshot of the error pop-up you are seeing.
(You can attach screenshot using the "Attachments and other options" link under the text box.)