Done My Research! Found An Incredible Niche But A Problem!

I have found an incredible niche which has started to become profitable. I have a problem though. It seems as though cl is now blocking my emails. I have been contacting people on cl but after so many emails it seems that the cl mail filter has been blocking them. Anyone know any ideas on how to get around it? I have changed my ip, but have not changed my email. Do you think not changing the email is the problem? Thanks for the help.

You need to change email and ips get alot of gmails and use them send like 20 per account In delay Mine is every 2 mins Ya i know takes awhile.