qmail in 32-bit mode (which was the default when it was written) had no issues. One issue was found in 64-bit mode without memory limits (against the explicit r

qmail in 32-bit mode (which was the default when it was written) had no issues. One issue was found in 64-bit mode without memory limits (against the explicit recommendation). Most "safe" languages like Python are written in C and are full of segfaults, mostly due to the high churn rate and the attitude of the developers. I haven't tried Rust yet, so I won't comment on that.