diff --git a/2/SRI/assignments/esquema-mail.md b/2/SRI/assignments/esquema-mail.md
index d9f91cf..b7bb807 100644
--- a/2/SRI/assignments/esquema-mail.md
+++ b/2/SRI/assignments/esquema-mail.md
@@ -34,7 +34,7 @@ MUA receptor local --*IMAP/POP*--> MTA receptor local --> MDA receptor local -->
 ```
 
 ```
-  Origen           Servidor Origen          Receptor
+   Origen          Servidor Origen          Receptor
 -------------       -------------        -------------
 | --------- |       | --------- |        | --------- |
 | |  MUA  | |       | |  MTA  | |        | |  MTA  | |
@@ -47,3 +47,23 @@ MUA receptor local --*IMAP/POP*--> MTA receptor local --> MDA receptor local -->
                                          | --------- |
                                          -------------
 ```
+
+## Recibir Correos por POP/IMAP
+
+```
+MUA cliente --*POP/IMAP*--> MTA --> MDA --> Buzón --> MDA --> MTA -->MUA cliente
+```
+
+
+```
+   Cliente         Servidor Cliente
+-------------       -------------
+| --------- |       | --------- |
+| |  MUA  | |       | |  MTA  | |
+| --------- |       | --------- |
+-------------       | |  MDA  | |
+                    | --------- |
+                    | | Buzón | |
+                    | --------- |
+                    -------------
+```