Subscribe report / dashboard issue

Hi,

I am facing issue to get the mail after subscribe the report / dashboards. I didn't get any mails for the subscription of any dashboard / report. I gone through the forum instractions but till I am not getting any mails.

My setting is as following 

1. Dataset are schedule refreshing through On premise data gateway on daily level and reports are showing updated numbers.

2. I checked my domain mail setting for Spam / Junk. I didn't get any mail from the "[email protected]".

3. I added the above mail id to safe sender list.

4. Active "Subscribe to email" option for a report and click on save & close.

please help me.