Hi Aleksandr! What is your Wildfly version? Wildfly 8 has buggy Java Mail API. In Wildfly 9 and later proper encoding is done automatically, no need to `encodeText` manually. See my answer here: http://stackoverflow.com/questions/35010796/wildfly-9-x-fails-encoding-gr... -- Tair Sabirgaliev On 7 June 2016 at 11:03:50, keycloak-user-request(a)lists.jboss.org ( keycloak-user-request(a)lists.jboss.org) wrote: Message: 1 Date: Mon, 6 Jun 2016 12:12:26 +0000 From: Nekrasov Aleksandr <a.nekrasov(a)ftc.ru&gt; Subject: [keycloak-user] Email internationalization To: &quot;keycloak-user(a)lists.jboss.org&quot; <keycloak-user(a)lists.jboss.org&gt; Message-ID: <59219ba4c1b449d0a2bded5436b8ca6a(a)nut-mbx-4.win.ftc.ru&gt; Content-Type: text/plain; charset="koi8-r" Hello everyone. I found a bug when trying to send email from keycloak to users with encoding against English. For example, when I try to send Russian message with subject "???????? ???? ??????? ??????" I see "????????????? ?????? ??????????? ?????" in my email. I think you should update org.keycloak.email.DefaultEmailSenderProvider class with line msg.setSubject(subject); to msg.setSubject(MimeUtility.encodeText(subject, "utf-8", "B")); Thanks. Nekrasov Aleksander, Developer, Center of Financial Techologies -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/keycloak-user/attachments/20160606/bea2f... ------------------------------ Message: 2 Date: Mon, 6 Jun 2016 19:38:59 +0200 From: Stian Thorgersen <sthorger(a)redhat.com&gt; Subject: Re: [keycloak-user] Email internationalization To: Nekrasov Aleksandr <a.nekrasov(a)ftc.ru&gt; Cc: &quot;keycloak-user(a)lists.jboss.org&quot; <keycloak-user(a)lists.jboss.org&gt; Message-ID: <CAJgngAeDFzb96dtFGgz59_RE-A3oGAJUNsNFPA-xXjxvYWipGw(a)mail.gmail.com&gt; Content-Type: text/plain; charset="utf-8" Please create a JIRA. If you want to submit a PR that would be welcome as well. On 6 June 2016 at 14:12, Nekrasov Aleksandr <a.nekrasov(a)ftc.ru&gt; wrote: -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/keycloak-user/attachments/20160606/21c20... ------------------------------