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Knowledge Base

Inbound/Outbound Message Size Limits

Total message size recommendation(includes file attachments) can be up to 25 MB, or your left over storage availability, whichever is less.

Total message size (includes file attachments) can be up to 25 MB, or less when there is not 25 MB of storage space available.

Note: File attachments may increase 30-50% of their original file size when they are encoded to be sent via email by an email program or Web Mail.

Users with the higher end Business Mail or Private Label end-users with the large one_storage packages can alternatively upload files to one_storage to allow people to download your large files.