Forum Discussion
Livi_1
Mar 17, 2021Copper Contributor
Improving security for shared mailboxes or generic user accounts
Hi, Our organisation uses generic accounts for each location for example, location@company.com Recently we have seen an increase in attempts to login to these generic accounts and I'm trying ...
- Mar 17, 2021Do you need to send messages directly as these addresses? If not, simply recreate them as DLs or Office 365 Groups (you can still use Send As permissions to send messages if needed).
You can safely block the account and it will continue receiving messages. You can also disable POP/IMAP/SMTP protocols, which are usually the target for brute-force attempts. And having a tenant-wide policy that block basic auth isn't a bad thing either 🙂
VasilMichev
MVP
Do you need to send messages directly as these addresses? If not, simply recreate them as DLs or Office 365 Groups (you can still use Send As permissions to send messages if needed).
You can safely block the account and it will continue receiving messages. You can also disable POP/IMAP/SMTP protocols, which are usually the target for brute-force attempts. And having a tenant-wide policy that block basic auth isn't a bad thing either 🙂
You can safely block the account and it will continue receiving messages. You can also disable POP/IMAP/SMTP protocols, which are usually the target for brute-force attempts. And having a tenant-wide policy that block basic auth isn't a bad thing either 🙂
Livi_1
Mar 17, 2021Copper Contributor
Thanks! Using Office 365 groups fits the bill exactly!
- Livi_1Mar 17, 2021Copper ContributorIts easy to manage. However I noticed the groups that were created in Teams did not automatically appear within Outlook. So if anyone is having similar issues, I found this article
https://techcommunity.microsoft.com/t5/microsoft-365-groups/office-365-groups-not-visible-in-outlook-client/m-p/275611
You have to change the value in Exchange Powershell:
Set-UnifiedGroup -Identity "group name" -HiddenFromExchangeClientsEnabled:$false
I only had to do it for one group so that made it easy.- Livi_1Mar 17, 2021Copper ContributorDoes anyone know if you open up the O365 account to accept external emails - whether you can still apply the spam and anti-phishing spoofing policies in compliance centre?