Unless your Unity Connection administrator set up the system to enforce a message-retention policy, you are responsible for managing the size of your mailbox by periodically reviewing your saved messages and either moving, archiving, or deleting them permanently.

If Unity Connection is set up to enforce a message-retention policy, ask your Unity Connection administrator how long the system stores your messages before permanently deleting them. You can then plan to archive or move important messages ahead of time. Unity Connection does not indicate when a message-retention policy is enforced, nor does it warn you before message are permanently deleted as a result of such a policy.

Deleted messages remain in your voice message folder and are included in the total mailbox size until Unity Connection purges them or until you purge them manually. Ask your administrator how long messages are stored before they are permanently deleted for you. This way you can plan to archive or move important messages ahead of time.

In addition, when you receive nondelivery receipts (NDRs) for messages that you send, your mailbox can quickly increase in size—especially when original messages included large attachments.

You may receive messages that have been forwarded many times over, which increases message size. The original message plus all recorded introductions that were added during forwarding equal the total message size. As a result, your mailbox can exceed its limit, even though you may have relatively few messages stored in it.

You may receive messages that contain attached files such as spreadsheets, documents, and faxes, or pictures. The message plus all attached files equal the total message size. As a result, your mailbox can exceed its limit, even though you may have relatively few messages stored in it.