Hello All,

When i click "View Mail Stats" in Mail Options

The error is shown as this

fail@c3.domain.org : unknown
local-part "fail" in domain "c3.domain.org"

fail@c3.domain.org : unknown
local-part "fail" in domain "c3.domain.org"

fail@c3.domain.org : unknown
local-part "fail" in domain "c3.domain.org"

fail@c3.domain.org : unknown
local-part "fail" in domain "c3.domain.org"


What does this means?

Help!!!!