What is solid about exim? Not only does it have more CVEs than any other mail transport agent (including four, all critical or high, just last year), they tend

What is solid about exim? Not only does it have more CVEs than any other mail transport agent (including four, all critical or high, just last year), they tend to respond by doing infamous things like releasing security patches on Christmas morning. I'm not the biggest fan of Haraka, but exim is easily the biggest security hassle you can ask for in an email server.