System info ----------- linux Linux server-607618.helmna.com 3.10.0-1160.142.1.el7.tuxcare.els1.x86_64 #1 SMP Mon Jan 19 10:00:36 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux Perl modules ------------ strict .......................... Ok Sys::Hostname ................... Ok POSIX ........................... Ok Errno ........................... Ok IO::Socket ...................... Ok IO::Select ...................... Ok Local server test ----------- Ok DNS client test (194.173.175.100) ----------- Ok DNS client test (194.173.175.100) ----------- Ok SMTP Client test (smtp.mail.ru) ----------- Error > Can't connect > Connection refused