Hello, I've searched alot in the documents, sorry if I missed anything, BUT MY QUESTION IS:
I want to restrict Unix/Linux System user such as XYZ of using sendmail to certain domains: in example: xyz.com xyt.com ztq.com and have it rejected if he tried to use other domains as sender Somewhat preventing forgery, Is there any solution right now for that or sendmail (postfix) should be modified? Also is there any solution to prevent this using SASL, I tried alot of header checking, it is possible but very messy and too many checks are required, I'm feeling I'm missing something any simple hash somewhere to do the job? Thanks Kia