Fix Email Protection Error: 451 Exceeding Connection Limit

Fix Email Protection Error: 451 Exceeding Connection Limit

This kind of McAfee error is usually caused by a filter system which detects Snowshoe/Hailstorm types of spam attacks unexpectedly, where thousands of unknown messages are simply delivered in a short period of time. This error typically occurs due to relatively unknown IP address according to the study confirmed by McAfee Tech Support expert. The Email Protection Inbound Spam Classification window is further defined as an option which is simply labeled as “Enable spam flood prevention” message in the McAfee software. Enabling this option will help users to drastically reduce the chances of receiving such unwanted spam email messages from a short lived spam campaigns which is described as a “Hailstorm” or even can known by “Snowshoe attacks”.

Steps to Fix Email Protection Error 451 Exceeding Connection limit issue

Step1: Control Console

A user at initial level needs to log on to the “Control Console’ section

Step2: Email Protection

Next, simply click on the “Email protection” icon

Step3: Policies

Selection of the policies option is an essential step to be considered by users while performing the function of Email Protection Error 451 in McAfee software

Step4: Inbound policy

Highlight all the desired inbound policy rules which is usually on Default Inbound mode by clicking on the” Edit” button

Step 5: Spam tab

Users are required to click on the “Spam” tab which will be in default mode to the Classifications sub tab

Step 6: Enable spam flood prevention

Simply disable the checkbox icon for the “Enable spam flood prevention” category

Step7: Save

Click on the “save” option and do allow at least 20 minutes for full replication method of the settings across all the functional servers.

                                        mcafee-customer support

If all the above steps do not work out, then we recommend users to get in touch with our McAfee customer support department where they will directly be interacting with our expert team of professionals. Steps to Fix Email Protection error: 451 exceeding connection limit issue

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