MailEssentials does not work on Microsoft Exchange 2013 SP1

Versions / Builds Affected

2012/2014/2015

Status

Resolved

Problem Summary

When an Exchange 2013 Server is upgraded to SP1, mailflow will stop / MailEssentials can't be installed on Exchange 2013 SP1

TT / JIRAID

1653

How to Identify

After the installation of Exchange 2013 SP1 the mailflow will stop - removing MailEssentials will establish mailflow again. Trying to install MailEssentials again (or on a fresh Exchange 2013 SP1 server) will fail as the Agents can't be installed. The ek27wiz.log doesn't show any errors. But when manually trying to install one of the agents you get an error: [PS] C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Microsoft Exchange Server 2013>Install-TransportAgent -Transpo rtService Hub -Name 'GfiAsSmtpAgent' -AssemblyPath 'C:\Program Files (x86)\GFI\MailEssentials\AntiSpam\ContentSecurity.E xchangeAgents.gfiassmtpagent.dll' -TransportAgentFactory ContentSecurity.ExchangeAgents.GfiAsSmtpAgentFactory The TransportAgentFactory type "ContentSecurity.ExchangeAgents.GfiAsSmtpAgentFactory" doesn't exist. The TransportAgentFactory type must be the Microsoft .NET class type of the transport agent factory. Parameter name: TransportAgentFactory + CategoryInfo : InvalidArgument: (:) [Install-TransportAgent], ArgumentException + FullyQualifiedErrorId : [Server=IOREKEXCHANGE,RequestId=e2cf0a39-1eb8-4c39-8350-0951795c7d09,TimeStamp=26/02/201 4 12:20:39] [FailureCategory=Cmdlet-ArgumentException] 8B7578CD,Microsoft.Exchange.Management.AgentTasks.InstallTr ansportAgent + PSComputerName : iorekexchange.gordon.local

Workaround / Fix Details

This has been fixed through the release of a CU update for Microsoft Exchange 2013 (currently we have CU7). Updating Microsoft Exchange to latest CU will solve the issue.

Required Actions

Attach article to case and apply Fix Details.