Ok,
let us focus on 2 things, I get:
Nmap scan report for smtp.webcenter.com.br (189.91.32.41)
Host is up (0.23s latency).
rDNS record for 189.91.32.41: avestruz.birdsnet.com.br
PORT STATE SERVICE
465/tcp open smtps
587/tcp open submission
you get:
Starting Nmap 7.94 ( https://nmap.org ) at 2024-02-04 22:19 UTC
Initiating Ping Scan at 22:19
Couldn’t open a raw socket. Error: Permission denied (13)
I can connect both with curl:
== Info: Connected to smtp.webcenter.com.br (189.91.32.41) port 465 (#0)
== Info: Connected to smtp.webcenter.com.br (189.91.32.41) port 587 (#0)
you get:
Failed to connect to smtp.webcenter.com.br port 465
Failed to connect to smtp.webcenter.com.br port 587
So we need more details about your system. Have you installed a firewall, is there anything extra in your routing? , and was there anything about your network settings. Is nmap -v localhost working? Might your provider block anything on the way out?