There are ways migrating mailboxes from one provider to Office 365. Importing through IMAP-enabled mailbox is one of them. And here is a quick run-down of what the steps are. First, verify the ownership of the domain and get all the mailboxes ready in Office 365. Then, prepare a CSV file in the following format: EmailAddress,UserName,Password [email protected],contoso\terry.admin,password12345 The first row […]
By default, emails sent from Shared Mailbox are only saved in the user’s Sent Items folder but ideally, it can be also copied in the Shared Mailbox’s Sent Items folder as well. To enable this Sent Items Copy feature, First, connect to Office 365 using: $userCredential = Get-Credential $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection […]
Shared mailbox on Office 365 can be very useful and served as many roles. When granted with full mailbox permission, the mailbox can be automatically shown up in your Outlook without extra configuration. There used to be a setting in Office 365 admin portal that can turn this auto-mapping feature on or off but I don’t seem to be able […]
A computer that had 30 seconds ahead of the domain controller got me to do this sanity check to see if the time is synchronized across the whole network. Why? Because having time off all over the place will cause all sorts of weird issues. It’s just that important. Here is a checklist of things you need to know when […]
I have a Group Policy setting in place that forces all workstations in the same OU checks and installs any available updates from a local WSUS automatically at 3:00 am every single day. It has worked beautifully until recently I started upgrading them gradually to Windows 10. The ones graduated from Windows 7 to Windows 10 don’t reboot themselves anymore […]
In a webnar that details how MegaCortex, the most recent Ransomware, attacks the network, the presenter from Sophos briefly introduced how Ransomware evolved over the years, way back from 1989 when an AIDS trojan was spread by 20K floppy disks via postal office to most recent years attacks including WannaCry in 2017 and MegaCortex in 2019. Guess how many type […]
Back to the old days when everything goes through the classic SMTP, nothing gets protected. Those were the good days for any man in the middle, picking up confidential information like free gift. Not anymore with the use of TLS, StartTLS, or even better S/MIME which is suitable for your most sensitive information. Every email sent through TLS is encrypted […]
A fellow IT Redditor, /u/shalafi71, created quite a security training slideshow and generously shared his PowerPoint on /r/sysadmin, who also adds: Take this as a skeleton and flesh it out on your own. Take an hour or two and research the things I talk about. Tailor this to your own environment and users. Make it relevant to your people. Include corporate stories, […]