Announcing Notqmail
Why not Postfix?  I trust Wietse V. and Viktor D. a great deal, and I trust their coding abilities at least as much as if not more than DJB's for anything that isn't a cryptographic algorithm.FYI, "I’ve learned more C, reduced build-time complexity, ..." probably isn't confidence-inspiring.  I work with C a great deal and have for a very long time, and I though I'm very comfortable with C, I treat it with fear and respect -- I have found far too many security vulnerabilities just from staring at C source code to do anything else.  Now, I too have "learned more C" over the years, but I wouldn't write a sentence like that as part of justification for some project written in C -- I would fear that others would wonder if I don't just know enough C to be dangerous.  Perhaps one should not write "I've learned more C" as part of anything other than justification for moving to Rust.