Reaching newly setup Office365 domain

Reaching newly setup Office365 domain

Hi,

we are trying to e-mail to our domain at acrotron.nl - from @acrotron.com -, which is just setup for using Office365, but the e-mails are being bounced. Could you have a look and/or fix/refresh your DNS?

Thanks!

--

This message was created automatically by mail delivery system.


THIS IS A WARNING MESSAGE ONLY.


YOU DO NOT NEED TO RESEND YOUR MESSAGE.


The original message was received at Fri, 10 May 2019 01:44:38 -0700  from b*****@acrotron.com [b*****@acrotron.com] 


    ----- The following addresses had fatal errors -----    

   [Status: Error, Address: <b*****@acrotron.nl>, ResponseCode 421, Host not reachable.]


Message will be retried for 4 more day(s)


    ----- Transcript of session follows -----    


 Received:from mail.zoho.com by mx.zohomail.com

with SMTP id 1557475150220252.04156023679332; Fri, 10 May 2019 00:59:10 -0700 (PDT)  Message-ID:<16aa0c0c98a.dbe58c20157476.8438205524892882119@acrotron.com>

 Date:Fri, 10 May 2019 09:59:10 +0200

 From:B <b*****@acrotron.com>  User-Agent:Zoho Mail  To:"B" <b*****@acrotron.nl>

 Subject:Re: e-mail from office 365 to acrotron  Content-Type:multipart/alternative; 

boundary="----=_Part_505182_170893475.1557475150218"