Duplicate emails on v20

[JoshWS]

Hi, we have configured a night and day dummy extensions with the same email, so that we can have a different Voicemail messages. This was fine in v18, however we have just upgraded the system to v20 and it says you cannot have duplicate extensions with the same email. Will this still work as it was pre configured before the update

 

[SteveITS]

AFAIK it will still work, however, a password reset can't be done on either extension. If the email system supports Plus Addressing that is an easy workaround to make them unique but deliver to the same mailbox.