SLA breach and missed call notification email missing for 1 user

[FastConnect]

Hello,

I have a strange issue and am hoping that someone can help me with it please. For my queue the managers of the queue (two of them) have been added to receive an email notification when an SLA breach occurs or a call is missed. I can see one of them gets the email in our mail server logs, but the other one does not. I added myself to the notification list and I also receive the email correctly. Are there any suggestions as to where the problem lies?

Thanks in advance,
Aaron

 

[Lee Cramman]

Any chance there have been previous mail bounces from that problematic address? 3CX blacklists an email address for a period when multiple bounces are received. I suspect if you temporarily changed their email address to another one the problem would disappear.

I can't remember the blacklist period, I've a vague recollection of 1 week but I could just as easily be wrong.

My other thought would be some sort of 3rd party spam filter blocking it (I say third party because it's not even hitting your server).

 

[greychain]

Have you tried sending a test email to the user from 3CX settings email page?