Exchange Size Limits
Apr01

Exchange Size Limits

Exchange Size Limits KB ID 0001368 Problem When attempting to send an email from Outlook via Exchange,  you see a message like the one below. The following files weren’t attached because adding them would cause the message to exceed the maximum size limit of {Size} MB: {File-Name} Or, when someone attempts to send a message to one of your mailbox users they get an NDR that looks like this. Remote Server returned ‘550 5.2.3...

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451 4.7.0 Temporary Server Error
Apr26

451 4.7.0 Temporary Server Error

451 4.7.0 KB ID 0001823 Problem If you attempt to connect to and send mail via command line to your Exchange Server, you may see the following error after you end the data section of the operation. 451 4.7.0 Temporary server error. Please try again later. PRX5 Solution 451 4.7.1 Error Log into Exchange Amin Center > Mail Flow > Receive Connectors > Default Frontend {Server-Name} > Edit > Scope > Select the IPV4 entry...

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UnifiedContent Folder ‘Growing’
Apr11

UnifiedContent Folder ‘Growing’

UnifiedContent KB ID 0001820 Problem If you have a vanilla install of Exchange, it will clean up the UnifiedContent folder on a four hourly schedule. the problem occurs if you have moved your Exchanges ‘Queue” directory. This will also relocate the UnifiedContent folder, but then Exchange, will still try (and fail) to tidy it up in the original location, (because it’s not there anymore!) Typically, you will see your...

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PowerShell to Exchange Online
Mar01

PowerShell to Exchange Online

PowerShell to Exchange Online KB ID 0001814 Problem While attempting to PowerShell to Exchange Online today, I tried to do this by using my usual method, and repeatedly got this error. New-PSSession : [outlook.office365.com] Connecting to remote server outlook.office365.com failed with the following error message : Access is denied. For more information, see the about_Remote_Troubleshooting Help topic. At line:1 char:12 + $Session =...

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Exchange 2013 to 2019 Upgrade
Feb08

Exchange 2013 to 2019 Upgrade

Exchange 2013 to 2019 Upgrade KB ID 0001808 Exchange 2013 to 2019 Upgrade With Exchange 2013 going end of support (11 Apr 2023) you should be migrating away from it as soon as you can, (as it’s only supported on up to Server 2012 R2), so you should have migrated off it already! It’s been some time since Exchange had any ‘major’ redesigns, 2013 was version 15, 2016 was version 15.1, and 2019 is Version 15.2. So...

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Exchange 2019 Migration from  Exchange 2016
Feb02

Exchange 2019 Migration from Exchange 2016

KB ID 0001472 Exchange 2019 Migration If Exchange 2016 was Exchange 2013 in a pretty dress, then with Exchange 2019 it’s simply added a hat. In the past, every third Exchange release was a major rebuild, but Exchange 2016 is simply Exchange version 15.1 (Exchange 2013 was 15.0 and Exchange 2016 is version 15.1). So the Exchange 2019 Migration is pretty much the same as it was from 2013 > 2016, or even 2016 > 2016.   There...

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