diff -r 95252b15fffb -r c6a33da1aa93 VirtualMailManager/constants.py
--- a/VirtualMailManager/constants.py	Sat Feb 08 18:33:25 2014 +0000
+++ b/VirtualMailManager/constants.py	Sat Feb 08 18:36:30 2014 +0000
@@ -28,6 +28,7 @@
 MIN_GID = 70000
 MIN_UID = 70000
 
+MIN_DOVECOT_VERSION = 0x20000f00
 
 # exit codes