Your server disagrees:
["ErrorInfo"]=>
string(82) "SMTP connect() failed
Keep in mind your phone and your website are completely different. One is outside GoDaddy's DMZ, the other on the inside.
This plugin has a connectivity test to check what we've discussed.
for at least 6 months without any issues.
GoDaddy makes their rules, not you nor I, and they can change at any time.