Monitor unlimited number of servers
Filter log events
Create email and web-based reports

Direct access to Microsoft articles
Customized keywords for major search engines
Access to premium content

Event ID: 4017 Source: POP3Connector

Level
Description
We have been denied access to Hostname[IP_address] logging as Username. Verify the password for the account.
Comments
 
As per Microsoft: "The POP3 Gateway connector is not case sensitive and converts all account information to lowercase letters. If the POP3 host from which mail is to be downloaded requires uppercase characters for user names, the POP3 host denies access". See ME243587 for a workaround on this issue.
As per Microsoft:"These events may be logged for any type unsuccessful authentication, including incorrect password, incorrect username, incorrect password and username combination, or if another session is locking the mailbox. This error may also be logged if you disable the POP3 account." For more information see ME279985.

Windows Event Log Analysis Splunk App

Build a great reporting interface using Splunk, one of the leaders in the Security Information and Event Management (SIEM) field, linking the collected Windows events to www.eventid.net.

Read more...

 

Cisco ASA Log Analyzer Splunk App

Obtain enhanced visibility into Cisco ASA firewall logs using the free Firegen for Cisco ASA Splunk App. Take advantage of dashboards built to optimize the threat analysis process.

Read more...