I'll help ensure you'll be able to email your other customer, @samuelpmagill.
We can check your email settings to ensure that all your customers can receive an email from you.
To start, make sure to update your QuickBooks so you'll have the latest features and fixes.
- Proceed to the Update to the Latest Release page.
- Make sure your product is selected. If not, go to the Change link and select your QuickBooks product.
- Click the Update button to download the update file.
- Choose Setup Automatic Updates to learn how to set QuickBooks to automatically download and install the latest updates.
Then Check the settings in the web mail preferences:
- From the QuickBooks Edit menu, choose Preferences.
- On the left pane, click Send Forms.
- Under My Preferences, select the email account you are using, then click Edit.
- In the Edit Email Info screen go to the SMTP Server Details section and set the server name and port to your email provider settings. Refer to Set up your email service in QuickBooks Desktop for a list of SMTP Server and Ports.
You can also review this link for more information: Fix Error: Could not connect to the email server.
If issue persist, I'd recommend you contact QuickBooks Desktop support. This way, they can further check the root cause of your concern and find a fix.
You can always reach out to me if you need anything else about sending your emails to customer. I'm here for you. Have a good one.
