telnet smtp.servidor.com 25 Trying 172.19.202.14… Connected to smtp.servidor.com. Escape character is '^]'. 220 Unauthorized access prohibited. The information on this system is property of this Organization and is protected by intellectual property rights. You must be assigned an account to access information defined by the System Administrators.Your activities will be monitored. HELO miservidor.msf.net 250 smtp.servidor.com Hello [172.19.195.31] MAIL FROM: remitente@micorreo.com 250 2.1.0 Sender OK RCPT TO: enviar@correo.com 250 2.1.5 Recipient OK DATA 354 Start mail input; end with <CRLF>.<CRLF> Prueba . 250 2.6.0 21cd0b0e-758c-46f3-b1ab-fcff53d46840@smtp.servidor.com [InternalId=4314826] Queued mail for delivery