diff --git a/apertium-spa.spa.metadix b/apertium-spa.spa.metadix
index 76bd13c..f6f7770 100644
--- a/apertium-spa.spa.metadix
+++ b/apertium-spa.spa.metadix
@@ -276,9 +276,12 @@
 </pardef>
     
 <pardef n="emails">
-  <e>       <re>[a-z.]+@[a-z.]+</re><p><l></l><r><s n="web"/></r></p></e>
+  <e>       <re>[a-z.\-_]+@[a-z\-.]+</re><p><l></l><r><s n="web"/></r></p></e>
 </pardef>
-    
+ <pardef n="identificador">
+  <e>       <re>@[áéíóúàèìòùäëïöüñça-z0-9\-_.]+</re><p><l></l><r><s n="web"/></r></p></e>
+</pardef>
+   
 <pardef n="urls">
   <e>       <!--      <re>(www.|http://|https://|ftp://)[áéíóúàèìòùäëïöüñça-z0-9\-./]+[áéíóúàèìòùäëïöüñça-z0-9/]</re> --><re>(http://|https://|ftp://)?[áéíóúàèìòùäëïöüñça-z0-9](([\-_])?[áéíóúàèìòùäëïöüñça-z0-9])*(.[áéíóúàèìòùäëïöüñça-z0-9](([\-_])?[áéíóúàèìòùäëïöüñça-z0-9])*)*(.[a-z][a-z]|.aero|.asia|.biz|.cat|.com|.coop|.edu|.gov|.info|.int|.jobs|.mil|.mobi|.museum|.name|.net|.org|.pro|.tel|.travel)(/([áéíóúàèìòùäëïöüñça-z0-9\-_\?=&amp;\*,]+(.[áéíóúàèìòùäëïöüñça-z0-9\-_\?=&amp;\*,]+)*/)*([áéíóúàèìòùäëïöüñça-z0-9\-_\?=&amp;\*,]+(.[áéíóúàèìòùäëïöüñça-z0-9\-_\?=&amp;\*,]+)*)?)?</re><p><l></l><r><s n="web"/></r></p></e>
 </pardef>
@@ -101712,6 +101715,7 @@
 <e>                      <par n="ordinals"/></e>
 <e>                      <par n="emails"/></e>
 <e>                      <par n="urls"/></e>
+<e>                      <par n="identificador"/></e>
 <e>                      <par n="ip"/></e>
   </section>
   <section id="final" type="inconditional">