Export users email addresses

Hello gentlemen, I would need your help. I have thousends of users in my oxid eshop . How can I export their email addresses? Unfortunately it is impossible for me to send the newsletter directly from admin area of my oxid eshop. Too many emails. I have to use an agent for bulk emailing.

Many thanks for your help!

the easiest ways would be via PhpMyAdmin, just go to oxusers table, select fields you want and click export