Office 365 Business Essentials

[orrtech]

We have Office 365 Business Essentials . We work with email and everything works fine except for one problem. When we send email to one specific client he receives it after a few hours only.

If we send the same email from the same pc , but from gmail account or another email account he receives it immediately . The other side  also uses Office 365 Business Essentials. 

What could be the cause of this problem? Is there any tool to analyze this problem?

thanks

Omer 

[#2]

Hi @orrtech

In the Exchange Admin Centre run a message trace and you should be able to see if there is any issues your end

https://docs.microsoft.com/en-us/exchange/monitoring/trace-an-email-message/run-a-message-trace-and-...

Hope that answers your question

Best, Chris