Email Security.cloud

Hello team, I have several days that a client reports that I can not send emails to certain domains, and when I check the mail queue I see the following error with many of those domains. Please help me.
The ip address of my client is 212.83.144.90

    16370 Wed Nov 23 11:40:35  maria.teran@urbano.com.ec
(delivery temporarily suspended: host cluster5.us.messagelabs.com[216.82.251.36] refused to talk to me: 501 Connection rejected by policy [7.7] 15209, please visit www.messagelabs.com/support for more details about this error message.)
                                         soporte_adminis1@segurosequinoccial.com

Hi Darwin,

I have checked this issue and found that the IP 212.83.144.90 is listed on our internal Blacklist and I have taken steps to get this removed by our anti-spam team. Once this has been completed I will update you. I have also reset the confidence of this IP accross our infrastructure.

I will confirm once this has been resolved.

Kind regards

Kevin Brosnan

Hi Darwin,

I can now confirm that the IP 212.83.144.90 has been removed from our internal blacklist and once the one hour propagation time has passed, you will no longer have any problems sending emails to our customers.

This is now resolved and please accept our apologies for any inconvenience caused to you and your company.

Kind regards

Kevin Brosnan

thanks so much

No problem at all Darwin.

Please feel free to mark this as resolved.

Kind Regards

Kevin Brosnan

Hi Darwin

If you agree this issue has been resolved would you be able to set this Thread to resolved so I know that further investigation is not required.

Kind regards

Kevin Brosnan

Tier 2 Senior Tech Support Engineer.