How to Send HTML Email

What's a quick, easy way to send HTML emails to myself to test them?

A Test Mail Server Tool can help with that -if you just need to receive and view any emails sent by your application.

Send HTML in email via PHP

It is pretty simple. Leave the images on the server and send the PHP + CSS to them...

$to = 'bob@example.com';

$subject = 'Website Change Request';

$headers  = "From: " . strip_tags($_POST['req-email']) . "\r\n";
$headers .= "Reply-To: " . strip_tags($_POST['req-email']) . "\r\n";
$headers .= "CC: susan@example.com\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=UTF-8\r\n";

$message = '<p><strong>This is strong text</strong> while this is not.</p>';


mail($to, $subject, $message, $headers);

It is this line that tells the mailer and the recipient that the email contains (hopefully) well-formed HTML that it will need to interpret:

$headers .= "Content-Type: text/html; charset=UTF-8\r\n";

Here is the link I got the information from... (link)

You will need security though...

how to send HTML email

Don't upcast your MimeMessage to Message:

MimeMessage simpleMessage = new MimeMessage(mailSession);

Then, when you want to set the message body, either call

simpleMessage.setText(text, "utf-8", "html");

or call

simpleMessage.setContent(text, "text/html; charset=utf-8");

If you'd rather use a charset other than utf-8, substitute it in the appropriate place.

JavaMail has an extra, useless layer of abstraction that often leaves you holding classes like Multipart, Message, and Address, which all have much less functionality than the real subclasses (MimeMultipart, MimeMessage, and InternetAddress) that are actually getting constructed...

How to send a reply email when recipient clicks button embedded in an email message?

The best what you could do is to use a mailto link in the message body. Email client applications don't allow running any scripts in the message bodies for security reasons.

How to send HTML email using R

This is possible, cf https://stackoverflow.com/a/21930556/448145
Just add:

msg <- mime_part(message)
msg[["headers"]][["Content-Type"]] <- "text/html"
sendmail(from, to, subject, msg = msg, ...)

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