New law in europe and need to keep all users emails that he sent

I don't think that You have to do this, unless You are an ISP.
Hosts must not do this.

 

This law has been discussed a lot here in Sweden and it is only ISPs that is obligated to store that kind of information.

 

regardless of the law, this might be a useful optional feature to offer hosting clients in any case... for both outgoing and incoming emails... sort of 'email backup service' or a service to search archives of emails.

I'm sure some clients would pay additionally for such a service, as it saves them from having to deal with their own email backup/archiving system.

There is a US law that requires certain types of businesses to provide emails on request for as far back as 7 years.... the loophole is, if the emails aren't being backed up, then there's no need to comply, but if you're backing up email then you have to provide any that are requested.

I'd think, the first step is to configure your server to not allow SMTP messages.. so that your clients have to email through your server, however, this doesn't prevent them from configuring their email software to relay through another server.

 

My understanding of the European law is that the content of the e-mail need not be backed up (and probably shouldn't be, since it may then fall foul of Data Protection Law) but destinations, subjects and other headers need to be archived.

It looks to me like MailScanner and MailWatch does this already, but I'm not sure how far back I can make it keep the data.

J.