"Could not create user" error in SmarterMail

Due to the way Windows operates, some usernames are not permitted in SmarterMail. These are:
  • con
  • aux
  • com1
  • com2
  • com3
  • com4
  • lpt1
  • lpt2
  • lpt3
  • prn
  • nul
Note that this limitation also applies to usernames with a period following the reserved word, such as: [email protected].

So, for example, these usernames will fail to be created:
These will be created successfully: