0 Mailgun (legacy) webhook not working 1 Henrik Korslind posted 3 Years Ago Hi!Im trying to set up Mailgun webhook but when I test our domain I get this reply.I red here in the community that some people got this and changed to legacy webhooks but that doesn't help either.Any ideas what to try next?// Henrik Response: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/> <title>406 - Client browser does not accept the MIME type of the requested page.</title> <style type="text/css"> <!-- body{margin:0;font-size:.7em;font-family:Verdana, Arial, Helvetica, sans-serif;background:#EEEEEE;} fieldset{padding:0 15px 10px 15px;} h1{font-size:2.4em;margin:0;color:#FFF;} h2{font-size:1.7em;margin:0;color:#CC0000;} h3{font-size:1.2em;margin:10px 0 0 0;color:#000000;} #header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS", Verdana, sans-serif;color:#FFF; background-color:#555555;} #content{margin:0 0 0 2%;position:relative;} .content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;} --> </style> </head> <body> <div id="header"><h1>Server Error</h1></div> <div id="content"> <div class="content-container"><fieldset> <h2>406 - Client browser does not accept the MIME type of the requested page.</h2> <h3>The page you are looking for cannot be opened by your browser because it has a file name extension that your browser does not accept.</h3> </fieldset></div> </div> </body> </html>