introlux
asked on
Office 365 - Block Sender Max Amount
Hi Experts,
I know the answer to this question:
How many addresses can the safe and blocked lists hold?
Approximately 2000 total. This is because the total size of all lists combined cannot exceed 512K. Once the 512K limit is reached, Outlook alerts you and additional addresses aren’t saved until you remove some from the list.
My issue is we have mas amount of email addresses that we would like to block and I have managed to do a registry hack within Exchange to increase the file size limit. However moving onto Office 365, we are not able to hack their system.
The question I have, is there a way of adding a domain to be blocked? for instance @domain200.com. So anything that comes from xxxxx@domain200.com is blocked. Like a wild card, this would reduce the amount of email addresses that we currently have.
Regards,
introlux
I know the answer to this question:
How many addresses can the safe and blocked lists hold?
Approximately 2000 total. This is because the total size of all lists combined cannot exceed 512K. Once the 512K limit is reached, Outlook alerts you and additional addresses aren’t saved until you remove some from the list.
My issue is we have mas amount of email addresses that we would like to block and I have managed to do a registry hack within Exchange to increase the file size limit. However moving onto Office 365, we are not able to hack their system.
The question I have, is there a way of adding a domain to be blocked? for instance @domain200.com. So anything that comes from xxxxx@domain200.com is blocked. Like a wild card, this would reduce the amount of email addresses that we currently have.
Regards,
introlux
ASKER
Using Get-MailboxJunkEmailConfig uration cmdlet I can block sender via domain?
Well, it's actually Set-MailboxJunkEmailConfig uration, but yes, you can block by domain as well.
ASKER
But can this be set per user? Also what is the limit?
ASKER
Another question, how can a user manage this using a GUI? As every example I see is done via powershell.
ASKER CERTIFIED SOLUTION
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ASKER
I have just added Hotmail.com in the block sender list and it has still allowed an email address from xxxxx@hotmail.com to hit the inbox.......... ??????
Any ideas why?
Any ideas why?
Or if you plan to do this on per-user basis, use the Get-MailboxJunkEmailConfig