Certified Senders Alliance (CSA) Guidelines

CSA Guidelines

Profit of the CSA Whitelisting

The Certified Senders Alliance (CSA) is a worldwide unique collaboration project of the DDV – the German Direct Marketing Association and eco – the Association of the German Internet Industry. The CSA runs a central, Germany-wide Whitelist, which is adopted by numerous large providers, like 1&1, AOL, Freenet, GMX, web.de or Yahoo.

CSA guidelines, which have to be considered by you


Delivery of e-mails is only allowed to recipients who either have given their opt-in or to whom an active customer relationship exists (for more details have a look to article 7 paragraph 3 UWG – German law).


The opt-in has to be given separately. That means bulk opt-ins are not allowed.


The opt-in has to be made consciously and explicitly. Presettings like a ticked checkbox are not allowed.


Each e-mail must contain an easy to find and complete imprint according to article 5 paragraph 1 TMG German law, which includes a valid phone number and e-mail address.


Each e-mail has to offer an opt-out option for the recipient, without the need of a login (e.g. an opt-out link). The opt-out has to be processed immediately.


The commercial nature of the e-mail may not be concealed by the sender name or the subject.

Technical requirements

Besides the guidelines there are numerous technical requirements, which the CSA demands. AGNITAS ensures the compliance of the technical requirements.