Error: Invalid base64 string for MIME content in Apple Mail on Catalina
I had a client today who after every email they received in Apple Mail on Catalina, an error dialog box would pop up saying "The Message could not be moved t...
Read post →Our thinking
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Technical notes and observations from years of supporting creative businesses on Mac.
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How to lock the Dock on macOS
I've occasionally needed to fix certain aspects of the Dock on some people's computers - one particular case comes to mind was an elderly client who somehow...
Read post →Create empty directories and symlinks at the root of the boot volume on macOS Catalina 10.15 – synthetic.conf
On macOS Catalina 10.15, the entire boot volume is mounted read-only. All user data, apps, configuration, preferences etc, exists on the data volume which is...
Read post →Office 365 - Single users unable to send email - Access Denied, bad outbound sender error.
Office 365 blocks a sender with a 550 5.1.8 bad outbound sender NDR; clear it via the Restricted Users list in the Security and Compliance centre.
Read post →Apple Mac Pro (2019)
Apple have finally opened their order books for the 2019 Mac Pro , and what a beast it is. Now that it's available for sale, we can see the pricing, not only...
Read post →The Sony PlayStation turns 25
The original PlayStation has turned 25. I spent many an hour with one of these units flying anti-gravity racers in wipEout, driving fancy sports cars in Gran...
Read post →Caching Server data location on macOS Mojave without Server app
I was trying to track down the location of the Caching Server cache on macOS Mojave, this is with just the Caching service enabled in Sharing, not with the f...
Read post →macOS Catalina Supplemental Update
Apple have just pushed out an update to Catalina - the macOS Catalina Supplemental Update. The description is pretty vague; "The macOS Catalina Supplemental...
Read post →macOS Catalina File System Layout
Wow, Catalina really mixes things up with regard to the file system layout. It also introduces something called firm links, which are not symlinks nor hard l...
Read post →How to check for 32-bit apps on macOS before upgrading to Catalina
In my last post, outlining the release of Catalina , I covered the process to check for 32-bit apps on your system prior to upgrading. Here's the info as a s...
Read post →macOS 10.15 Catalina Released
Apple have released macOS 10.15 Catalina overnight - this is a big update that is going to break a lot of old software, so please be very careful when instal...
Read post →Update all of your Adobe Creative Cloud apps before upgrading to macOS Catalina
Adobe have published a list of apps that are 64-bit compatible for macOS. Fix Adobe app 64-bit compatibility errors on macOS Before you upgrade to macOS Cata...
Read post →Configure the macOS Automounter system
macOS continues to maintain a fully-functional and highly reliable Unix automount system. This system allows us to keep network shared folders mounted on a M...
Read post →Quick Tip: Stop Firefox zooming the page when you scroll with the Command key held down
I will often open up a page with a lot of links, e.g. Feedly to read the news, and as I scroll down the page, I like to use ⌘+click to open the links in a ne...
Read post →Public Service Announcement - Confirm when changing supplier bank details
I received this notification from my bank recently, and it's very good advice that really needs to be passed around. It is critical when changing a BSB and A...
Read post →Microsoft: Your password doesn't matter
Microsoft have published an excellent article on the Azure Active Directory Identity Blog titled Your Pa$$word doesn't matter . Although it gets pretty techn...
Read post →Unable to add, modify, or delete items from the System Keychain on macOS – UNIX[Operation not permitted]
I was setting up a new user on a laptop recently and every time I rebooted the machine, I had to re-enter the wifi password. Aside from being really irritati...
Read post →Mac mini (2018) won't power on, or how to restore the T2 bridgeOS from DFU mode on a Desktop Mac
It's Alive! I've got a Mac mini (2018), one of the new models in Space Grey with a T2 chip. It's a powerhouse, it replaced a Mac Pro (Late 2013) and on every...
Read post →RPC Error -2147220992 with Start-ManagedFolderAssistant on Office 365 Mailboxes
Work around RPC error -2147220992 from Start-ManagedFolderAssistant by passing the user's primary mailbox GUID instead of their address.
Read post →Acrobat DC on Mojave crashing when dragging a PDF to another monitor
I had an issue at a client's site today where they have a MacBook Pro running macOS Mojave 10.14.5 and Adobe Acrobat Reader DC. What would happen is that whe...
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