Skip to main content
Question

M365 Mailbox Retention

  • August 26, 2026
  • 0 replies
  • 6 views

Forum|alt.badge.img+10

all,

I am configuring M365 mailbox backups.

I have created an Office 365 Plan and set “Retain deleted items for 2555 days”

I then created a Backup Plan with Primary to Disk for 365 days and synchronous AUX to Tape for 2555.

Am I correct in saying that all mailbox backups from now with be Incremental and it ignores the Backup Plan retention and keeps all mail for 2555 days on Disk & Tape !

 

Also, is there a way to run a once off Full backup ?

 

Currently on 11.36

 

Thanks