| Pos | Name | Country | stamps | Since |
|---|---|---|---|---|
| 201 | Magariños Juan Manuel | Argentina | 42 | 22/10/2009 |
| 1019 | Magaz Jose | España | 4 | 01/01/2010 |
| 670 | Maldo Eduardo | Argentina | 2 | 22/07/2009 |
| 270 | Maldonado Paco | España | 25 | 31/05/2008 |
| 120 | Maldonado José Carlos | España | 362 | 26/04/2010 |
| 508 | Mancilla Diego Javier | Argentina | 5 | 23/11/2012 |
| 921 | Manrique Vasquez Amelia Ligia Elvira | Colombia | 1 | 18/04/2014 |
| 194 | Manuel Luis | España | 175 | 16/03/2011 |
| 252 | Marfetan Monica | Ecuador | 59 | 26/11/2009 |
| 42 | Marin Jose Luis | España | 3154 | 26/08/2011 |
| 182 | Marin Villegas Jorge Arturo | Costa Rica | 167 | 12/09/2011 |
| 282 | Maroto Jose | España | 68 | 11/06/2012 |
| 962 | Marques Victor | España | 1 | 26/01/2012 |
| 240 | Marques Huertas Jose | España | 166 | 04/10/2010 |
| 643 | Marquez Jean | Portugal | 3 | 22/02/2013 |
| 804 | Marti Gonzalo | España | 2 | 28/05/2012 |
| 283 | Martin Antonio | España | 52 | 19/10/2009 |
| 344 | Martin Carlos | España | 35 | 18/04/2011 |
| 501 | Martin Jesus | España | 157 | 15/10/2012 |
| 589 | Martin Jose | España | 5 | 18/06/2017 |