For example, you’re free to group all your work colleagues in a contact list calledWork.
Unfortunately, Outlook may sometimes fail to send emails to contact lists.
Lets see how you’re free to fix this problem.
Create a copy of the problematic contact list and then delete it.
Restart Outlook and recreate your contact list.
If this issue affects the stand-alone Outlook app, go towww.outlook.live.comand send your email out via the web app.
If the email contains large attachments, delete them.
Use afile compression programto reduce the size of your attachments and have another go.
Get the Latest Office Updates
ensure to update Outlook and Office to the latest version.
If this issue is because of a software bug, its probably patched in the latest Office version.
Repair Office and see if the problem persists.
cycle your box and attempt to send your email again.
If the issue persists, go to the next step.
Disable all your add-ins and then re-enable them one by one to identify the culprit.
Then update or remove the problematic add-in.
Conclusion
If Outlook doesnt send emails to specific contact lists, recreate the problematic contact list.
Then give a shot to send your emails via the web app.
verify to update Office to the latest version.
Additionally, repair your Outlook profile and Office install files.
If the issue persists, try running Outlook in Safe Mode.
