Change the outgoing server to : Smtpout.secureserver.net
If it still fails, Try changing security and port with the following three configurations one by one :
| Server: | Authentication/Security: | Port: | |
| SMTP Server (Outgoing Messages) | Non-Encrypted | AUTH | 25 (or 587) |
| Secure (TLS) | StartTLS | 587 | |
| Secure (SSL) | SSL | 465 |
Regards,
Rahul Tyagi