Why emails are not getting reflected in servicenow from outlook for few people even they are active

[Prathamesh Chav]

Hi Team,

we have inbound action but to perform that, approver/reject mail for the particular record is not coming inside servicenow when send from few people and its working for others.

[Mark Manders]

If the email isn't coming to ServiceNow, you can't do anything from SN point of view. You at least need to receive it before you can handle the email. It should be checked in the config of the outlook/network of those users.

It also depends on how your instance is setup. If you use a company email box that forwards the emails to ServiceNow, check on the config there. It could be these users are blocked there. 
Assuming the email domains they are sending from aren't blocked in ServiceNow, it really is outside of it if the emails don't arrive. Do they get auto replies that something went wrong on delivery?

If you haven't done that yet: check the sys_email table in full (all mailboxes, so not just inbox/received). Did they end up in junk or skipped? If so, the record itself should give you some pointers to why they weren't handled as expected. If they aren't there, see above: it's not something you can fix from SN.