SMTP Problem sending e-mail

Provider update some parameters for email and now i’ve some problems to send.

Any suggestion?

Port SSL/TLS: 465

Port STARTTLS: 587

Error sending Email using [smtp.cbsolt.net] to Address <xxx@zzz.com>

Exception Detail: System.Net.Sockets.SocketException (0x80004005): Impossibile stabilire la connessione. Risposta non corretta della parte connessa dopo l’intervallo di tempo oppure mancata risposta dall’host collegato 185.97.217.92:25

in EASendMail.SmtpClient.;q(String 7v, Int32 7v)

in EASendMail.SmtpClient.Connect(SmtpServer server)

in EASendMail.SmtpClient.SendMail(SmtpServer server, SmtpMail mail)