Vertigo 1.1.5 or earlier
When trying to see the size of a mailbox, Vertigo does not show an accurate size estimation.
Vertigo has had trouble reporting the correct mailbox size in versions earlier than 1.1.6.
1) Check the version of Vertigo.
Open Vertigo. In the menu bar click on 'Help' and then select 'About Vertigo.'
2) Update Vertigo.
Vertigo 1.1.6 has made some new changes including more accurate mailbox size calculating, click here to read more about the changes in Vertigo 1.1.6.Once Vertigo has been updated to at least version 1.1.6 then it should report more accurate mailbox sizes.
This link provides some help and guidance on how to update Vertigo:
This article was originally published in the GWAVA knowledgebase as article ID 1844.