SPF, DKIM and DMARC bypassed for guest users
I manage a small non-profit using Microsoft 365 Business Basic. Most of the people on our board of directors are added as unlicensed guest users so that they can participate in Teams chats and meetings and to access our Sharepoint without using up a license. The problem: any email sent from an internal licensed user (or shared mailbox) to one of these guest users completely bypasses our domain's SPF, DKIM and DMARC configuration, resulting in bounced emails (particularly for recipients using gmail). Mail sent from an internal licensed user to any external address NOT registered as a guest user correctly passes SPF, DKIM and DMARC checks. I gather that this is because guest users are viewed as "internal" despite having external email addresses, but it seems like a serious limitation if I cannot reliably send email to anyone who is a guest user. Is there any extra configuration I can do to enable SPF, DKIM and DMARC for email to guest users?
I Can't use my own name to create a new Microsoft account in India.
I am an Indian Microsoft user, my full name is Aryan Rajput, which is legally registered by my parents in my country Republic of India. I don't know any norms of European countries about registering names, I don't know what restrictions are made, I can clarify my name, in my present situation is legal and legit. Moreover, none of my associates (including my parents) are pro-Nazi, and let me tell you leader of Nazism (I don't want to tell his name here hence I might be banned maybe) inspired by Indian culture and adopted terms like my name (Aryan means noble). Hence Microsoft should allow me to adopt my name in creating new account, because it's my right! At least they must allow in India where it is legal I hope the management would take necessary steps accordingly
revision de ortografia en outlook
Hola comunidad!!! en la nueva version de outlook tengo elegidos 2 idiomas: cuando se escribe texto en ingles sale todo marcado si realizo el cambio de idioma preferido a Ingles funciona, pero después al crear un nuevo correo en español salen marcadas todas. como hacer para que esto no suceda independiente del idioma en que se crea el correo, es decir que sea detectado de forma automatica e indique correcciones ortográficas segun lo que se escriba, en las opciones de idiomas de correcccion aparece hasta 3 idiomas.. falta algo por configurar?? Gracias...Creating a Microsoft 365 Retention Policy for Shared Mailboxes
After being asked whether licenses are needed to include shared mailboxes in Microsoft 365 retention policies, I investigated and found that licenses are not. This led to a consideration of the steps needed to create a special retention policy for shared mailboxes (with PowerShell, naturally) and how to avoid retention setting collisions with other policies. All explained in detail here. https://office365itpros.com/2025/08/05/shared-mailboxes-retention/M365 Backup Only Covers 1,000 Users
Hello everyone, I have a question: I created an Exchange backup policy using a dynamic rule based on security groups that include around 140,000 accounts. However, when I reviewed the policy 3–4 days later, it seems that only 1,000 accounts are actually included in the backup. Is there a known limitation on the number of accounts supported by dynamic rules in backup policies? Or could this be a configuration issue? Thanks in advance for your help! Simon EmeryCompliance search is not returning any data (Powershell)
At our organization, we have an SOP for purging phishing emails from all mailboxes. Part of that is creating a search and then examining it for any legit emails before going on to the purge step. The commands below are no longer returning any data, and they used to work. What has changed? PS C:\Windows\system32> Connect-IPPSSession -UserPrincipalName email address removed for privacy reasons PS C:\Windows\system32> New-ComplianceSearch -Name "Broken" -ExchangeLocation All -ContentMatchQuery 'Subject:"invoice"' Name RunBy JobEndTime Status ---- ----- ---------- ------ Broken NotStarted PS C:\Windows\system32> Start-compliancesearch -identity "broken" PS C:\Windows\system32> Get-compliancesearch -identity "broken" Name RunBy JobEndTime Status ---- ----- ---------- ------ Broken admin 7/14/2025 8:17:09 PM Completed PS C:\Windows\system32> Get-ComplianceSearch -Identity "broken" | >> Select-Object Name, Status, ItemsFound, Size, CreatedBy, CreatedTime | >> Export-Csv -Path "C:\filename.csv" -NoTypeInformation The resultant .csv has only the headers, but no information about emails, so any purge commands have nothing to purge. Thank youTurning off email notifications about new comments in one certain file
Hi All! I found a solution to turn off all email notifications on new comments in my shared files (through settings on SharePoint), but it doesn't really solve my problem. In project files I work on with my colleagues, email notifications are helpful for monitoring workflows and streamline the process. At the same time, I'm an owner of yearly excel files shared with a big team in order to monitor the work on all clients and automate the visualization of it, but it gets commented on a lot and I don't need to get all of that on my Outlook. Is there any way to turn off email notifications about new comments for just one file without turning them off on all my shared files? Kind regards, Jakub Banasik
