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The latest Exchange health check had an interesting addition - identification of deprecated exchange groups. The link that MS provide to get more detail on this doesn't really give any more detail on this.... so i went searching and found https://rafaelpfister.ch/blog/exchange-security-updates-juli-2026 which provides some interesting info - but doesn't really go into what to check…
Continue readingThe current company im working for is a large (for Aus) media company and as such, because basically everyone that works here is into marketing and sales, we just have a ridiculous number of domains. As part of the cleanup process here - i bought up the huge number of domains we had and that…
Continue readingRecently i had a situation where a user with a shared mailbox which had a ludicrous number of items. He recently started in the role and wanted to "start fresh" - but items could not be deleted. A quick investigation found that litigation hold had been enabled for the mailbox (in addition to our org…
Continue readingThis is a somewhat niche issue - which is why im documententing it here. Scenario Exchange migration to exchange online which i came into approx 75% of the way through - so i don't have any history on why some things have happened (and there is no useful doco) Tenant wide retention policies are in…
Continue readingWorking at a client whom are approx 75% of the way through their migration to exchange online - and there are some odd things im running into - so here's one of them. The scenario and issue Exchange hybrid setup, with servers on prem and EXO active. Active mailboxes in both. Mail flow from on…
Continue readingOne question that comes up constantly from clients is "Once we move all mailboxes to exchange online, we can remove all our exchange servers, right ?" To which we answer "no - for these reasons...." but its something that has a great deal of trouble sticking.... as the same question gets asked over and over…
Continue readingCame across this after following a post on linked in - checked it out - and its pretty bloody good. Run the tool - it will spit out a report with recommendations for O365 Advanced threat protection... The recommendations it spits out are of a pretty good quality https://www.linkedin.com/pulse/reviewing-your-office-atp-configuration-cam-murray/ its not perfect (these things rarely…
Continue readingHad a client ring today with a mail flow issue. They are most of the way through their migration to 2016, but mail flow stopped with the error "421 4.4 2 connection dropped due to socket error" on the exchange 2010 side - when trying to relay to exchange 2016. This occurred after patching…
Continue readingI recently did a piece of work for a client - moving from Exchange 2010 to 2016. Nothing too exciting.... but they did have an interesting issue. Once migrating some of test mailboxes, inheritance in AD had to be enabled for a few admin accounts before they could connect via outlook and activesync - to…
Continue readingThe short answer is - not much. Exchange 2019 was released a few weeks back, but was effectively un-usable, as Exchange 2019 requires Windows Server 2019.... and Windows server 2019 got pulled from release (like Windows 10 1809) due to some issues. Windows Server 2019 was re-released a few days ago, which allowed nerds everywhere…
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