"And then you're scrambling to figure out how the spammers managed to exploit your setup this time."
...
" ... writing a MTA with the goal of minimizing configuration and being secure and resistant to attacks by default. "
As a 20+ year UNIX sysadmin and fellow owner of my own email infrastructure for 18 of those, I am surprised to read this and am not even sure what you are talking about.
Can you explain what you mean by attacks and exploits from spammers ?
Other than accidentally running as a relay or actually having a remote exploit in your server(s), what are the attacks that you have in mind ?
"Configuration that will soon be exploited in strange ways."
Again, am genuinely interested in an explanation ... other than running as a relay, and maybe handling backscatter (but that's not really config, it's just a blacklist) what are you referring to ?
...
" ... writing a MTA with the goal of minimizing configuration and being secure and resistant to attacks by default. "
As a 20+ year UNIX sysadmin and fellow owner of my own email infrastructure for 18 of those, I am surprised to read this and am not even sure what you are talking about.
Can you explain what you mean by attacks and exploits from spammers ?
Other than accidentally running as a relay or actually having a remote exploit in your server(s), what are the attacks that you have in mind ?
"Configuration that will soon be exploited in strange ways."
Again, am genuinely interested in an explanation ... other than running as a relay, and maybe handling backscatter (but that's not really config, it's just a blacklist) what are you referring to ?