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Creating Visual Indicators for spoofed / external emails with PowerShell

I've been managing mail service for users for a lot of years now. I don't do it daily but I've spent my fair share of time analyzing spam emails. Mail vendors are doing what they can fighting spam, but it's not easy. Each month, each year spam is getting more sophisticated. Spam emails either look like a legit email, or worse someone is targeting your company trying to get them to transfer money into a wrong account. While most of those end up in spam, there are those that come thru. It's even worse if the company you work with has not implemented SPF or their SPF is configured to soft fail which can't be treated as spam.

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Bittitan MigrationWiz – The selected Mailboxes cannot be subscribed

Recently I'm doing yet another migration between Office 365 tenants using Bittitan Migration Wizard. It's a great tool and takes away a lot of headaches when dealing with the migration of mailboxes or OneDrive data. Unfortunately, like with many blogs on my website I had to hit yet another error. This time error occurred when I tried to assign User Migration Bundle license to users on the Migration Wizard.

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Outlook – The primary account cannot be removed unless it is the only account in the profile

Last few months I'm responsible for the migration of Office 365 to Office 365. While doing so, we came into a situation where users have their old mailbox as Primary Account and new Mailbox as their secondary account. This is a quite common scenario that people are running into and something that is expected. Usually, my recommendation is: Please create a new profile for user and topic is closed. It's also quite easy to achieve this in an automated way where you delete all profiles and Outlook just goes with autodiscovery adding new account as required. That's how I have always done this till now. My Client has gone thru setting up 1000+ users with their second account in Outlook and deleting a whole profile, recreating would cause lots of downloading of emails from Office 365 that my Client wanted to avoid.

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Microsoft Exchange – 420 4.2.0 Recipient deferred because there is no Mdb

Last few weeks I'm responsible for migrating from Office 365 to Office 365. Part of this migration process is to set up new Exchange 2016 server that will work as relay instead of using IIS server. I've setup hybrid, added accepted domains, prepared connectors, but there's one thing missing. Any time an email is sent via relay to a user that exists on Office 365 and at the same time exists in Active Directory email never gets there.

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Bittitan MigrationWiz – Users getting undergoing maintenance message

MigrationWiz from Bittitan is one of the best tools on the market allowing for migration of user mailboxes. Whether it's a google account, exchange account or IMAP, it will help you out. Last few months I'm part of migration project that is using Bittitan at its core. One of the signature features of this tool is the ability to migrate mailboxes from Office 365 tenant to Office 365 tenant. This is not something that every application can do. Another feature (and something I want to address today) is the ability to ask users for their logins and password to migrate their data from one tenant to another tenant. While in general, you shouldn't do that and you should use migration accounts with proper permissions sometimes you have no other choice.

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PSBlackListChecker – Added Discord support

It's been less than 24 hours since I've released PSBlackListChecker with support, among other improvements, for Microsoft Teams and Slack and I'm now adding Discord to the mix. Discord was a popular request (well not really, just one person asked, but let's pretend everyone loves PSBlackListChecker so much that they are too shy to ask for feature requests!).

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