Public facing isn't the right term here. It simply means that the authentication requirement to send mail to the distro has been disabled to give anyone anywhere the ability to send an email to it. That makes it publicly accessible. If you want a list of all of the distribution groups that have the authentication requirement disabled you can use this little one-liner. Open Exchange Management Shell as an Administrator and type the following: Get-DistributionGroup | ? … [Read more...] about Exchange: Export a list of all public facing distribution groups
Here's a great tool for testing DNS, Mail, SMTP, and similar environments to see if they are listening on certain ports across the internet. https://www.dnswonder.com/Tools/ With it, you can test: GET DNS RECORDS GET MX RECORDS GET PTR RECORDS GET SPF RECORDS GET BLACKHOLE LIST (RBL) GET SMTP SERVER TYPE TEST SMTP CONNECTIVITY TEST EMAIL DELIVERY TEST EXCHANGE SERVER TEST IMAP SERVER TEST ZIMBRA SERVER TEST REGULAR EXPRESSION ENCRYPT DATA Enjoy. … [Read more...] about Tools for Testing SMTP, DNS, other mail server types, and more
While doing some end of the year vulnerability scans, we were getting some web servers coming back with some potential security threats, all too common in the IT world. Looking for a faster method to patch up these holes, I came across a very neat little tool Call IIS Crypto made by the good people at Nartac Software. Their explanation of the tool: IIS Crypto is a free tool that gives administrators the ability to enable or disable protocols, ciphers, hashes and key exchange algorithms on … [Read more...] about Disable Vulnerable Ciphers, Hashes, Keys, using IIS Crypto
There are many reasons why this particular service won't start, but a really popular reason involves clocks on the client and server. Even if the time in your taskbar and the time on your AD Server are the same, they may not be the same somewhere else on the machine, or so I've learned. Here's how to find out, and how to find out what else it may be: The Service: The service we are talking about is the Microsoft Exchange Information Store service, store.exe, or MSExchangeIS. The … [Read more...] about Microsoft Exchange Information Store service won’t start
You're going to get this error in later versions of Exchange because you allowed the TO field to auto-complete instead of choosing the name from the GAL. Clear out the TO field and only add people to the field using entries from the GAL. … [Read more...] about Calendar sharing is not available with the following entries because of permission settings on your network.
Here are some things you'll need, for sure, before you get started: Access to the Exchange Server A backup of the exchange database (.edb) file and its logs The name of the mailbox you wish to recover and a second mailbox in case you'd like to copy data from the recovered mailbox to a random mailbox so you don't overwrite anything Here are the steps to the recovery: Add the Exchange Database to the Exchange Server as a "Recovery Database" Correct an issues with the database, … [Read more...] about Recover a Mailbox in Exchange 2010