transilvlad

All webmasters experience the problem of their emails landing in their users spam folders, including our own! 
So we decided to develop a simple solution to fix this wide-spread annoyance. 
After a long development period, we have produced an effective method of sending emails which complies 
in full with all guidelines and security requirements of email providers such as Google, Yahoo & MSN.
<h3>Markdown</h3>
<ul>
<li>Your emails will no longer be marked as SPAM.</li>
<li>If your emails do not even arrive to Yahoo! or MSN with Xmail they will.</li>
<li>This is the way Google, Yahoo! and MSN best like emails to come to them.</li>
</ul>

Xmail – The Right Way

Replaces wp_mail and sends email the right way so it does not get flagged as SPAM.

FolioVision

This plugin reconfigures the wp_mail() function to use SMTP instead of mail() and creates an options page that allows you to specify various options.
You can set the following options:
<ul>
<li>Specify the from name and email address for outgoing email.</li>
<li>Choose to send mail by SMTP or PHP’s mail() function.</li>
<li>Specify an SMTP host (defaults to localhost).</li>
<li>Specify an SMTP port (defaults to 25).</li>
<li>Choose SSL / TLS encryption (not the same as STARTTLS).</li>
<li>Choose to use SMTP authentication or not (defaults to not).</li>
<li>Specify an SMTP username and password.</li>
</ul>
Also adds subject to headers for SendGrid Activity Screen. SengGrid is a powerful SMTP service, however it’s Activity Log screen misses the message subjects. Our plugin adds that back in!

WP Mail SMTP SendGrid Edition

Based on WP Mail SMTP. Also adds subject for display on SendGrid Activity Screen.

Xmail – The Right Way vs WP Mail SMTP SendGrid Edition