Just thought I'd share this with you. I used to get customers to indicate compliance on anti-spam policy by signing a piece of paper.
I now do this electronically using a web form. See it here
Saves paper, postage and makes it easier for the customer to action it,
Good idea Julian. As well as asking for agreement, keep in mind you will need actual details on how permission was obtained.
See http://www.campaignmonitor.com/blog/post/2752/how-to-check-your-clients-sending-permission/ for help with that.
Thanks Mathew I hadn't seen that before. I'm going to add an additional section in order to ask how the list was derived.
As per your recommendation Mathew I have now added a free text question to my web form..
I should stress I always meet with clients face to face initially and ask them questions about their list as per your guidelines. The web form is really a re-inforcement of this.