Resolved on roundup-users:

Am Freitag, 4. September 2009 10:26:50 schrieb Shrikant Patil:
> Yeah.. it solves the problem.

> On Thu, Sep 3, 2009 at 3:30 PM, Ralf Schlatterbeck <rsc@runtux.com> 
wrote:
> > the mail-Gateway interface has changed in 1.4.9 -- this looks like
> > you're running a script that uses the old interface against the new
> > install. The new MailGW constructor doesn't have the db option. So
> > changing line 13 in your get-support-email script to
> >      return mailgw.MailGW(instance, options)
> > should fix the error. (you don't need to open the database in your
> > script, this is done in the mailgw now for each message).