What email marketing company uses mailm?

Hi

I am looking at a website and it appears to have this code to subscribe to a newsletter

<form method="post" action="http://www.mailm.co.uk/3/form.php?form=79" id="xxx" onsubmit="return xxxx;">
			<fieldset>
				<input type="text" name="email" id="footerEmail" value="Your Email Address">
    			<input type="hidden" name="format" value="h">
				<div><input type="submit" value="Subscribe" class="submit pmg-button"></div>
    		</fieldset>
		</form>

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Who are mailm? If you searhc google for them you dont exactly get much back.
You cant go to mailm.co.uk. Is it something custom built perhaps ?

Thanks