What user agent is used by SEOMOZ crawler?

[eseider]

We have a pretty tight robots.txt file in place to only allow the major search engines.  I do not want to block SEOMOZ.ORG from being able to crawl the site so I want to make sure the user agent is open.

[Martijn_Scheijbeler]

Hi Eric,

The useragent of SEOMoz is: rogerbot.