Im having trouble sending emails to AOL addresses.

I appreciate you for providing the details regarding trouble sending emails to AOL addresses, joe272. I'd like to provide you with some comprehensive insights regarding the process of sending emails within QuickBooks Online (QBO).

In QBO, if the email address is incorrect or there's a temporary issue with the recipient's email server, an email will bounce or fail to deliver. To determine if the problem is with the recipient’s email address, I recommend sending a test email to your own email account.

If the issue continues, please ensure that your company email and all customer-facing email fields are complete, correctly formatted, and free of prefixes.

Here's how to check:

1. Go to the Gear icon and select Account and Settings.
2. Click the Company tab.
3. Select Contact info, then check your Company email and Customer-facing email.

For additional support, I'm including this article that outlines various tips for resolving delivery errors in QuickBooks: Fix the Delivery Server Down error in QuickBooks Online.

You can always revisit this post if you have more questions regarding emails in QuickBooks Online. The Community team is always available to assist you.