• Certificates

    Renewing TLS Certificate on a Hub Transport Server

    I received an event today advising me that the local TLS certificate has expired and needs to be renewed. Here is the event info. We need to renew this Certificate otherwise mailflow in Exchange 2007 will stop working. To do this open Exchange Management Shell and type the following: Get-ExchangeCertificate | fl You will be presented with all the certs installed on the server. You need to now find the cert that has expired. An example of an expired cert is: AccessRules        : {System.Security.AccessControl.CryptoKeyAccessRule, System                      .Security.AccessControl.CryptoKeyAccessRule, System.Securi                      ty.AccessControl.CryptoKeyAccessRule} CertificateDomains : {XXXX01, XXXX01.domainname.local} HasPrivateKey      : True IsSelfSigned       : True Issuer             : CN=SERVER01 NotAfter           : 2010/12/28 09:33:12 AM NotBefore          : 2009/12/28 09:33:12…

  • Telnet

    How to send mail using Telnet (This is to test SMTP mail sending issues)

    Open a Command Prompt and type the following to test sending mail using SMTP: (This is used to test that SMTP is working and that port 25 is open.)   telnet mail.domain.ext 25 HELO MAIL FROM: mail@domain.ext        (this  e-mail address should be the address from the domain that you are testing from) RCPT TO: mail@otherdomain.ext DATA Subject:-type subject here- then press enter twice (these are needed to conform to RFC 882) To tell the mail server that you have completed the message enter a single “.” on a line on it’s own.

  • Exchange 2007

    How to setup Autodiscovery on Exchange 2007

    This is how to setup Autodiscover for Exchange 2007 after the trusted certs have been setup: Create an AutoDiscover DNS Record on you DC – Open t DNS Manager. – Expand Forward Lookup Zones then expand domain.xx – Right-click domain.xx and select New Host(A) – Type autodiscover and the IP Address of the Exchange 2007 server, then click on add. – Click OK then click Done. Configure Exchange 2007 Server – On the Exchange server open Exchange Management Shell – Type the following:  Set-OutlookProvider –id exch –ssl:$true and press Enter. – Then type the following: Set-OutlookProvider –id exch –server:servername and then press Enter.