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Knowledgebase : Mimecast
Below you will find a link to the Microsoft explanation, and to some other work around for this issue. 452 4.3.1 Insufficient system resources - on relay of: mail from A reputable resolution can be found at the following URL: http://exchangepedia.co...
How to Pull Internet Headers from Email Message Question: How do I pull internet headers from an email message? Answer: Below are instructions on how to pull internet headers for various email clients. MICROSOFT OUTLOOK 2010 1. DOUBLE CLICK the...
Receiving an error message: 552 MS-Office file containing VBA macros found inside of the email ----- SOLUTION ----- This is a SonicWall's Gateway Anti-Virus feature. 1. Login to the SonicWall 2. Security Services 3. Gateway Antivirus 4. Configu...
Messages Not Delivered or Delayed with Cisco Appliance(s) Question: Messages to my users are being delayed, or not delivered at all. There is a Cisco firewall, router, or switch in my environment. What is causing this issue? Answer: INFO For our cu...
Question: What does the error "5.3.4 Message size exceeds fixed maximum message size" mean? Answer: This article details information found for a recipient server running Microsoft Exchange 2003, 2007, and 2010. Please check with your technical resourc...
Question: 550 5.7.1 Message rejected as spam by Content Filtering Answer: DESCRIPTION "550 5.7.1 Message rejected as spam by Content Filtering" This error occurs when sending to an Exchange 2007 or later server. Cause Email messages that are ...
WELCOME AND RFI Dear Primary Contact, Congratulations on your first step towards taking full control of your email environment! Mimecast provides unified email management with a single online Software-as-a-Service (SaaS) solution, so you don't need t...
Emails not being delivered, or being delayed in delivery, can cause end users a lot of frustration. Most Administrators will have received support calls where end users have either received a postmaster notification (NDR - Non‐Delivery Report), or when an...
HOW CAN I VERIFY A MESSAGE HAS BEEN DELIVERED? Mimecast provides full tracking details for every message that has routed through our platform. By navigating into the details of a particular message, you can confirm the recipient's mail server that accep...
WHAT IS THE PURPOSE OF THE “ADDITIONAL IP’S” SECTION OF THE RFI (REQUEST FOR INFORMATION)? The additional IP field allows you to document any additional IP addresses that may be sending email with your domain name, such as a bulk mail service. This ensu...
ACCESSING THE GATEWAY POLICY EDITOR To access the Gateway Policy Editor: * Log in to the _ADMINISTRATION CONSOLE_. * Click on the _SERVICES _toolbar button. A menu drop down is displayed. * Click on the _GATEWAY | POLICIES_ menu item. Your avai...
Gateway Policies allow an Administrator to apply granular control to the flow of email messages as they are processed by Mimecast. They are: * A set of rules that affect the flow of email traffic. * Applied to either inbound or outbound messages. T...
ISSUE: When users try to reset their password via the MimeCast portal, the user gets to the "received your verification code" step and then they get the following error: Sorry, something went wrong. please try again later, if the problem persists, con...
ERROR: This domain name does not match domain registered in the license key file (cms.orlinpilot.com), allowed domains: support.excelmicro.com,localhost, please change the product path to match the domain under Admin CP > Settings > General Settings
This product will not work properly unless untill that value is changed.

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