Create a dynamic group by email address (not includes 2nd email address)

Question

I've created a dynamic group from powershell as below,  but it also shows the user who's the 2nd email address is @abc.com.
So how can exclude the user has 2nd email address from the group?
New-DynamicDistributionGroup -Name "ACB All Users Dynamic Group" -OrganizationalUnit xyz.lftltd.net/HKG/Groups -RecipientContainer lftltd.net -PrimarySmtpAddress
[email protected] -RecipientFilter {(EmailAddresses -like
'*@abc.com') -and (RecipientType -eq 'UserMailbox') -and (CustomAttribute9 -ne 'Resigned') -and (Title -ne 'System Mailbox')}
Many thanks.

Answer 1

Hi Timothy,
Besed on my test, to filter the recipients based on the second emailaddresses  seems difficult, because there is a limit to the syntax of RecipientFilter, it's hard for me to divide the results of the property emailadresses and filter
the recipient based on the first one.
In addition, to get all the recipients from the dynamic group, please refer to the script below:
$ddg = Get-DynamicDistributionGroup ITUsers
Get-Recipient –RecipientPreviewFilter $ddg.RecipientFilter
And we can usually filter the emailaddress from get-emailbox like this:
If there is anything else regarding this issue, please feel free to post back.
Best Regards,
Anna Wang