Thank you for reaching out, tslm-gvlsc. Let’s make sure you can successfully send your sales form emails to your customers in QuickBooks Online (QBO).
Before we proceed, have you encountered any specific error messages when sending these sales forms? Is this issue happening only with customers who have Yahoo email addresses, or are other domains affected as well? Any additional details you can provide would be greatly appreciated.
If it’s only Yahoo addresses, you can consider asking your customers for an alternative email address with a different domain to ensure delivery.
However, if you’re unable to send emails to multiple domains, we can clear your browser’s cache and cookies. Make sure to use a supported browser for the best QuickBooks experience, as browser-related issues can sometimes interfere with its functionality, including email delivery.
Also, you can configure your server to accept QBO's mail server hostnames and IP addresses. For this, consulting an IT expert for assistance to help ensure proper configuration.
On top of that, you can also consider downloading the sales forms as a PDF and sending them manually.
Lastly, please check out this article for detailed guidance in recording invoice payments in QuickBooks Online: Record invoice payments.
If you have more questions about sending emails within QuickBooks Online, feel free to click the Reply button below.
