Subj : sending mail failing e-mail validation To : all From : Nicola Mettimano Date : Sat Sep 10 2022 03:41 pm Some step forward here.... Mystic use its code to send email trought an external SMTP, so is't not an OS/sendmail misconfiguration problem and then I was able to completely remove sendmail* from my OS. On my firewall (in real time filter) I saw that requests on ports 587 and 465 are sent to theexternal SMTP server so the problem was certainly authentication. I switched SSL/TLS from yes to no and changed port to standard 25 and it worked, then the problem is cryptlib related, i think; i use 3.4.5.0 compilend under Ubuntu server 22.04 and g++ 9 (is't the only way to compile it under my os). g00r00 what do you think about? --- Mystic BBS v1.12 A47 2021/12/24 (Linux/64) * Origin: REtrogaming ACTivities (REACT) BBS (2:335/601) .