Simple Email Validation in Java ... The Apache Commons Validator package offers the building blocks for carrying out various data validation tasks ...

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Images, attachments, personalization, multiple recipients, HTML emails and sending via Gmail in one guide.

ReactJS is a fabulous library for building good-looking web applications. It can handle any kind of responsive interfaces and complex interactions you can think of. But things might get a bit tricky if you need to add some typically backend-minded functionalities to your web application. Think of a simple contact form placed at one of the subpages. While building a React email template will be a piece of cake (not that yummy, though!), adding sending capabilities requires a bit of research.

In this article, we’re covering various methods and we’ll also share some recommendations along the way.

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Learn how to send emails with React Native using Linking API and serverless 3rd parties.

To learn about Jakarta Mail basics, sending messages via an SMTP server and more options to consider head to the original tutorial about how to send email with attachement in Java on Mailtrap Blog.

To send an HTML email, you should perform the same steps as for sending a simple text message, with only SendHTMLEmail class instead of just SendEmail. Also, you need to set content to the MimeMessage.setContent(Object, String) and indicate text/html type.

To add an image to your HTML email in Jakarta Mail, you can choose any of three regular methods: CID, base64 image, or linked image.

To embed a CID image, you need to create a MIME multipart/related message: