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Overview
Message size limits are necessary to prevent large messages from blocking the delivery of other messages and affecting service performance for all users. These limits include attachments and apply organization-wide to all messages (inbound, outbound, and internal).
If you need to send a large file, please use the UT Vault service.
Message Limits
| Message size limit (including attachments) |
50 MB |
| Size limit for encrypted messages |
25 MB |
| File attachments limit |
250 Attachments |
| Subject length limit |
255 Characters |