Blocked Message Details

The Blocked Message Details chart on the Threats tab of Dashboard displays the number of messages blocked for different reasons.

Select a time period by Date, Week, Month, or Last 12 months to show data for the selected time period.

The specified time period only affects the data shown on this chart and its corresponding thumbnail chart on the Threats tab. Changing these selections does not affect other charts.

The traffic direction slightly changes the data displayed on charts. The following is the specific data displayed:

Table 1. Values on Charts

Value

For Incoming Mail

For Outgoing Mail

Sender IP found in QIL

The number of messages blocked because the sender IP address was detected in the Quick IP List (QIL)

Sender IP found in KSSL

The number of messages blocked because the sender IP address was found in the Known Spam Source List (KSSL)

Sender IP found in DUL

The number of messages blocked because the sender IP address was found in the Dynamic User List (DUL)

Sender IP found in ETL

The number of messages blocked because the sender IP address was found in the Emerging Threat List (ETL)

Sender IP found in block list

The number of messages blocked because the sender IP address was found in the customized block list

Recipient invalid

The number of messages blocked because the recipient was not in the Valid Recipient list when Recipient Directory Management is enabled

Sender IP not allowed

The number of messages blocked because the sender IP address was not in the Outbound Servers under Domain Management

Sender domain not found

The number of messages blocked because the sender domain was not found in the public DNS system

Recipient domain not found

The number of messages blocked because the recipient domain was not found in the public DNS system

TLS not available

The number of messages blocked because the email client did not use TLS

Message too big

The number of messages blocked because the message size exceeded the maximum

Rate limit exceeded

The number of messages blocked because the total number of messages exceeded the maximum limit in a certain period

Rate limit exceeded - message count (by IP address)

The number of messages blocked because the total number of messages sent from a single IP address exceeded the maximum limit in a certain period

Rate limit exceeded - message count (by email address)

The number of messages blocked because the total number of messages sent from or to a single email address exceeded the maximum limit in a certain period

Rate limit exceeded - data size (by IP address)

The number of messages blocked because the accumulated data size from a single IP address exceeded the maximum limit in a certain period

Rate limit exceeded - data size (by email address)

The number of messages blocked because the accumulated data size from or to a single email address exceeded the maximum limit in a certain period

Rate limit exceeded - data size (by domain)

The number of messages blocked because the accumulated data size from or to a single domain exceeded the maximum limit in a certain period

Recipient blocked

The number of messages blocked because the recipient email address was found in the internal global block list

Sender IP blocked

The number of messages blocked because the sender IP address was found in the internal global block list

Sender blocked

The number of messages blocked because the sender email address was found in the blocked sender list or the internal global block list

Policy matching error

The number of messages blocked because an error occurred during policy matching

Sender domain malformed

The number of messages blocked because the sender’s DNS record was found malformed

Recipient domain malformed

The number of messages blocked because the recipient’s DNS record was found malformed

Other

The number of messages blocked due to other reasons

Total

The total number of email messages blocked