#210 Destination e-mail address isn't valid!

[Anonymous]

Hi, when we try to send email to a third level domain name (for example bob@third.second.one) we receive the error message that "Destination e-mail address isn't valid!" It works for second level domains.
We don't have any DNS issue, we tried to resolve the third level domain through ssh shell and it works.
Many thanks

[Anonymous]

It's probably a bug in the email check. what version are we talking about?