Skip to main content

Acronis error when recovering Microsoft 365 email attachment > 4MB

Thread needs solution

Acronis reports an error when attempting to recover a Microsoft 365 email attachment > 4MB.

Acronis KB 68505 documents "Cause" as "Microsoft 365 limitation:  letters that contain attachments that are larger than 4MB cannot be restored.".

Can anyone explain why this problem exists, when Microsoft 365 supports email attachments of > 4MB, and Acronis is able to back them up, but Acronis cannot recover them?

0 Users found this helpful

Rodolfo, sorry but you will need ask Acronis support to expand on the reasoning behind the limitation of 4MB attachment size for Microsoft 365 documented in KB 68505: Acronis True Image: Attachments larger than 4 MB are not restored from Microsoft 365 backup

I don't have Microsoft 365 and have never used Outlook for my emails!  I use Mozilla Thunderbird which does all that I need and that I am able to backup as part of my normal regular backups of my D: drive (where I store my Thunderbird profiles data).