Bad Reputation Mail Server

I need a solution

We are a small company with our own mail server and got a couple of complains in the last past months that our mail is not deliverd.

“Remote Server returned ‘< #5.7.1 smtp; 554 5.7.1 You are not allowed to connect because your IP is blacklisted

If i go to the and check mail servers IP I get the feedback that the IP have a bad reputation?

I removed it from black list many times in last a months, could you please check below about our company infrom.

from : korea

e-mail :

IP : Machine) Svr)

Host Name :

domain :

if you need more information. plz send email me.


i got the two error msg

1. error

NOTICE: Delivery Failure.

This Delivery Status Notification is sent from MTA…

Your delivery to the following address has been failed.
Please refer to the below for details.

2. error

I’m afraid I wasn’t able to deliver your message to the following addresses.
This is a permanent error; I’ve given up. Sorry it didn’t work out. Below
I include the list of recipients and the reason why I was unable to deliver
your message.

Failed recipient(s):

Error message:
554 5.7.1 Rejected because Bad IP



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