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421 SMTP connection Webmail

Hello there,

 

I'm getting 421 SMTP error while sending mail on cpanel webmail. Can anyone help to solve this problem

 

Thanks 

1 REPLY 1
Super User II
Solution

Re: 421 SMTP connection Webmail

Hello 

 

epending on the type of hosting account you are using that will dictate the relay server address you will want to configure your application to use, here are the list of examples. 

 

https://www.godaddy.com/help/what-is-the-name-of-my-hosting-accounts-relay-server-953?

 

The 421 error can be fixed by increasing the value of ‘smtp_accept_max’ setting in exim configuration file. But simply increasing this limit is not a healthy action.

 

Zulfiqar Anees | GoDaddy PRO | Founder/CEO at TechMag, ZulWeb, Enter To Study