<div class="markdown">
<p dir="auto">On 15 Oct 2015, at 12:31, Benny Kjær Nielsen wrote:</p>
<blockquote>
<p dir="auto">I've received a report about a problem with setting the default email client on El Capitan, but I'm unsure if it's a general problem. I can reproduce it myself, but maybe that is a coincidence. I'm skeptical because my experiments indicate that this is not a MailMate issue, but a general OS X issue (on my machine).</p>
</blockquote>
<p dir="auto">Looks like a general problem. I experience the same behaviour as you - deafult mail client jumps back to MailMate after a few seconds. I tried setting default clients in both Mail.app and MailMate, and the setting wouldn’t stick.</p>
<p dir="auto">The next step was to try the trusty <a href="http://www.rubicode.com/Software/RCDefaultApp/">RCDefaultApp</a>, and this time my choice of default client stuck.</p>
<p dir="auto">–erik</p>
</div>