Error Sent Email

[rslemer]

When I setting my email server in SMTP Server Settings, system show OK

System sent a email with confirmation ( I see this message em my inbox )

But when I try send another emails, system show SMTP Connect failed ..

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There one particularity in this server, the setting are

smtp.server.com.br ( port 465 )
but protocolo is SSL ( normally is TLS for port 465 .. ) I guess ...

I try to setting
smtp.server.com.br:465 ( forced port number, in server field )
SSL

System connect and sent email confirmation, but when try to compose one new messagem in coreBOS message not send ( always showed sending ... )