Hi
NAS probe
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In nas AO profile
under "Matching Criteria" you can add filters to group or selectively send alerts based on your requirement
https://docops.ca.com/ca-unified-infrastructure-management-probes/ga/en/alphabetical-probe-articles/nas-alarm-server/nas-im-configuration/the-nas-auto-operator-tab
EMAIL
Sends the alarm as an e-mail to the emailgtw when the defined alarms matching criteria are met.
Note that you are allowed to use a comma-separated list of e-mail addresses.
If an e-mail address is specified in the recipient field:
The alarm is sent as an e-mail to the specified e-mail address.
EMAILGTW probe
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Create a Profile
Email: defines the email address of the recipient.
You can specify multiple recipients, separated with a comma
Note: For Exchange server, the probe supports more than 1024 characters if Group Recipients check box is selected in the Email Message section.
However, for SMTP server, the probe supports up to 1024 characters.
Setup-> General -> Group Recipients
(Optional) Group Recipients: sends a single group email to all the recipients in the group.
Default: Not selected
https://communities.ca.com/thread/241724264