You can no longer send forms via email using QuickBooks Desktop 2019, as this version has been discontinued, JWinter95.

Once a version is discontinued, some important functions may start to work less effectively over time. Aside from that, consider upgrading to a newer version of QuickBooks Desktop Enterprise or QuickBooks Online, as they offer enhanced features, improved performance, and better security.

For more details on the discontinuation, please refer to this article: QuickBooks Desktop 2022 service discontinuation policy.

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