diff --git a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
index 14ea6f867..6cd0aa7bb 100644
--- a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
+++ b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
@@ -652,6 +652,29 @@
         <label>Secret</label>
         <type>text</type>
     </field>
+    <field>
+        <label>MailinaBox</label>
+        <type>header</type>
+        <style>table_dns table_dns_miab</style>
+    </field>
+    <field>
+        <id>validation.dns_miab_user</id>
+        <label>User</label>
+        <type>text</type>
+        <help>User with admin priviledges</help>
+    </field>
+    <field>
+        <id>validation.dns_miab_password</id>
+        <label>Password</label>
+        <type>text</type>
+        <help>Password for admin user</help>
+    </field>
+    <field>
+        <id>validation.dns_miab_server</id>
+        <label>Server</label>
+        <type>text</type>
+        <help>MailinaBox Server FQDN</help>
+    </field>
     <field>
         <label>Namecheap</label>
         <type>header</type>
diff --git a/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml b/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
index da8b7692c..0b5070634 100644
--- a/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
+++ b/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
@@ -394,6 +394,7 @@
                         <dns_linode>Linode API</dns_linode>
                         <dns_loopia>Loopia API</dns_loopia>
                         <dns_lua>LuaDNS.com API</dns_lua>
+                        <dns_miab>MailinaBox API</dns_miab>
                         <dns_namecom>Name.com API</dns_namecom>
                         <dns_namecheap>Namecheap API</dns_namecheap>
                         <dns_namesilo>Namesilo.com API</dns_namesilo>
@@ -696,6 +697,15 @@
                 <dns_lua_key type="TextField">
                     <Required>N</Required>
                 </dns_lua_key>
+                <dns_miab_user type="TextField">
+                    <Required>N</Required>
+                </dns_miab_user>
+                <dns_miab_password type="TextField">
+                    <Required>N</Required>
+                </dns_miab_password>
+                <dns_miab_server type="TextField">
+                    <Required>N</Required>
+                </dns_miab_server>
                 <dns_me_key type="TextField">
                     <Required>N</Required>
                 </dns_me_key>
diff --git a/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php b/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php
index d83de618f..7f1578ad3 100755
--- a/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php
+++ b/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php
@@ -811,6 +811,11 @@ function run_acme_validation($certObj, $valObj, $acctObj)
                 $proc_env['ME_Key'] = (string)$valObj->dns_me_key;
                 $proc_env['ME_Secret'] = (string)$valObj->dns_me_secret;
                 break;
+            case 'dns_miab':
+                $proc_env['MIAB_Username'] = (string)$valObj->dns_miab_user;
+                $proc_env['MIAB_Password'] = (string)$valObj->dns_miab_password;
+                $proc_env['MIAB_Server'] = (string)$valObj->dns_miab_server;
+                break;
             case 'dns_namecheap':
                 $proc_env['NAMECHEAP_USERNAME'] = (string)$valObj->dns_namecheap_user;
                 $proc_env['NAMECHEAP_API_KEY'] = (string)$valObj->dns_namecheap_api;