Email Security.cloud

Hello!

We are facing an issue with mail delivery from japan@innovation-matrix.com to kouji_miura@funaisoken.co.jp and jfitzgerald@appliedrobotics.com addresses.

Here's log from the server:

2017-06-23 03:16:38 [55451] 1dOIpW-000EQN-AO <= eonaga@innovation-matrix.com H=108-90-43-67.lightspeed.sntcca.sbcglobal.net ([192.168.1.92]) [108.90.43.67]:55242 I=[166.63.122.124]:587 P=esmtpsa X=TLSv1:ECDHE-RSA-AES256-SHA:256 CV=no SNI="mail.innovation-matrix.com" A=dovecot_plain:eonaga@innovation-matrix.com S=8203 M8S=0 id=5E64690C-C117-457F-B19E-BB3EC22183BE@innovation-matrix.com T="Re: \345\276\241\347\244\274" from <eonaga@innovation-matrix.com> for kouji_miura@funaisoken.co.jp japan@innovation-matrix.com
2017-06-23 03:16:38 [55460] 1dOIpW-000EQN-AO SMTP connection outbound 1498202198 1dOIpW-000EQN-AO innovation-matrix.com kouji_miura@funaisoken.co.jp
2017-06-23 03:16:40 [55460] 1dOIpW-000EQN-AO == kouji_miura@funaisoken.co.jp R=dkim_lookuphost T=dkim_remote_smtp defer (-44) H=cluster1a.us.messagelabs.com [85.158.139.103]:25: SMTP error from remote mail server after RCPT TO:<kouji_miura@funaisoken.co.jp>: 421 Service Temporarily Unavailable

Messages being sent from Cloud server which is fully clean and not affected by any sorts of outgoing spam. Server's IP address is 166.63.122.124.

Could you please take a look on this and assist with resolving?

Thanks!

Hi

That IP is not listed on our blocklist and the reputation is good. Also the MX record that this error refers to is not the primary MX record (cluster1a.us.messagelabs.com) the correct MX record for funaisoken.co.jp is cluster1.us.messagelabs.com.

I have have tried to find the logs for the email with no success. Could you please check and see if the eissue is still in progress and if so previde sending and recipients full email address together with the subject line.

Kind regards

Kevin Brosnan

Tier 2 Senior Technical Support Engineer.

Hi Boris,

I have just noticed post my investigation that the IP reputation was reset less that 2 hours ago. Therefore it appears it was already brought to our attention. I believe this has since resolved your issue with sending emails to our customers.

Please can you test and set this thread tas resolved to prevent others adding to it.

Kind regards

Kevin Brosnan

Tier 2 Senior Technical Support Engineer.

Hi Boris,

Just following up on this and wondered if you require any further information.

If not please can you set this thread as resolved to prevent others adding to it.

Kind regards

Kevin Brosnan
Tier 2 Senior Technical Support Engineer
CompTIA Security+ Certified

Hi!

Sorry for long reply. Yes, everything is working fine now!

Thank you for your fast reaction!

Hi Boris,

Thanks for confirming all is good.

Can I ask that you set this thread as resolved.

Kind regards

Kevin Brosnan