E-mail service cannot deliver e-mail - Event6873 (SharePoint 2010)

Alert Name: E-mail service cannot deliver e-mail

Event ID: 6873

The Microsoft SharePoint 2010 Products e-mail service processes e-mail destined for insertion into SharePoint lists. The service processes mail that the Windows Simple Mail Transfer Protocol (SMTP) service added to a drop folder.

One or more of the following symptoms might appear:
• SharePoint lists do not receive e-mail.
• This event appears in the event log: Event ID: 6599 Description: an error occurred while processing incoming email

One or more of the following might be the cause:
• There is no corresponding SharePoint list for the recipient of an e-mail.
• The sender does not have sufficient permissions to add content to the SharePoint list.

Troubleshooting Steps:

Verify that the list is configured to receive e-mail:
1. In the list provided in the event details, on the List menu, click List Settings.

2. On the List Settings page, under Communications, click Incoming e-mail settings.

3. Verify the following:
• The correct e-mail address is entered in the E-mail address box.
• The Yes option is selected under Allow this document library to receive e-mail?

Grant the sender the appropriate permissions to the recipient list:
1. In the list provided in the event details, on the List menu, click List Settings.
2. On the List Settings page, under Permissions and Management, click Permissions for this list.
3. Verify that the user account provided in the event details has at least Contributor permissions to the list.

If you have any queries/questions regarding the above mentioned information then please let me know, Thanks..