Posts Tagged ‘whitelist’

Recently trying to release and whitelist an item using Barracuda’s cloud Spam filter. however was getting the below error:

The message couldn’t be downloaded either. Tried from Multiple pcs and still an issue

Trying the next day and the issue was fine which shows it must have been something on Barracuda’s side!

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Many internal companies use Newsletter services such as Mailchimp to email out internal newsletters. The From Address of this is usually an internal email address which means it will get rejected by the anti spoofing policy

Option 1

In Mimecast Administration Panel go to : 

Administration -> Gateway -> Policies -> Anti Spoofing SPF based Bypass

  1. Add the following Policy, this will only whitelist IP’s in your SPF Record,  so putting servers.mcsv.net will not work , you will also have to put “ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16” in your SPF record. If your SPF is over 255 characters : try option 2

 

Option 2

Administration -> Gateway -> Policies -> Anti Spoofing

Add the policy below , you can get a list of IP’s Mailchimp user here

 

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Great a Computer Configuration Group Policy Object for Windows Firewall per below

Whitelist the below files Inbound and Outbound

C:\program files\mimecast\mimecast windows service\msddsk.exe ( 32 bit ) 

C:\program files (x86)\mimecast\mimecast windows service\msddsk.exe  ( 64 bit ) 

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If a website a being blocked from being viewed due to Fortinet web filter with the Category 

“newly observed domain” 

This is due to URLs whose domain name is not rated and were observed for the first time in the past 30 minutes. 

You can wait 30 minutes or you can use the Web Ratings Overrides below to change the category from newly observed domain to an accepted Category like Business and Finance

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