https://community.appian.com/discussions/f/plug-ins/20653/mariadb-and-ews-mail-pollerHi all, We use the EWS Mail poller in order to download mail from Exchange Web Service, with db mysql. We don&#39;t found any reference to use Maria DB. anyone have found any problem using Maria DB? thanks.en-USTelligent Community 12https://community.appian.com/thread/80501?ContentTypeID=1Thu, 25 Mar 2021 09:08:56 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d187d1bb-12cd-4020-8892-8ec5428d3ad6Stefan Helzle<p>I understand. Then you will need to contact the author and ask whether he is willing to provide an update</p> <p><a href="https://community.appian.com/b/appmarket/posts/poll-email-from-microsoft-exchange-ews-api">community.appian.com/.../poll-email-from-microsoft-exchange-ews-api</a></p><div style="clear:both;"></div>https://community.appian.com/thread/80500?ContentTypeID=1Thu, 25 Mar 2021 09:05:30 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:10e4d9ff-17f6-409b-83bb-5144a84af80cVincenzo Reggina<p>Thanks Stefan.</p> <p>we have experienced after upgrading to Appian 21 the message &quot;Unsupported database for processing email: mariadb&quot; in logs.</p><div style="clear:both;"></div>https://community.appian.com/thread/80491?ContentTypeID=1Wed, 24 Mar 2021 20:10:55 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:cd773334-02e7-48da-8464-a92e81d4aad1Stefan Helzle<p>MariaDB is almost 100% compatible to MySQL. I would not expect any issues. Did you do tests?</p><div style="clear:both;"></div>