email Relay through heroku(3rd party )hosting

[nitesh-sharma1]

Can't send mail via relay server asia.

Hosting via Heroku (3rd party hosting service)

response code 421 and421 p3plsmtps2ded03.prod.phx3.secureserver.net : HOSTING RELAY : vMwFgOijmSwDH : DED : ESMTP No Relay Quota information retrieved. Please try again.

Configuration for smpt mail request.

mailer.host=dedrelay.secureserver.net
mailer.port=25

response of smtp mail (java based)

DEBUG SMTP: useEhlo true, useAuth true
2019-02-17T13:56:59.027666+00:00 app[web.1]: DEBUG SMTP: trying to connect to host "dedrelay.secureserver.net", port 25, isSSL false
2019-02-17T13:56:59.172430+00:00 app[web.1]: 421 p3plsmtps2ded03.prod.phx3.secureserver.net : HOSTING RELAY : vMwFgOijmSwDH : DED : ESMTP No Relay Quota information retrieved. Please try again.
2019-02-17T13:56:59.172876+00:00 app[web.1]: DEBUG SMTP: could not connect to host "dedrelay.secureserver.net", port: 25, response: 421

[JesseW]

Hi @nitesh-sharma1. Thanks for being part of GoDaddy Community! Given that you're posting this to our Office 365  board, I'm guessing that you're trying to use an Office 365 account to relay your email. That is not possible with the email plans we provide. You may need to look into other relay providers, such as Mailgun. The only websites that can relay messages via our email servers are those that are hosted with us. Even then, you would only be able to use relay-hosting.secureserver.net. I hope that helps clarify the situation.