HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail

Do not expand Contact Groups
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\disabledlexpansion
Change the limit for the number of MIME body parts
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\mimebodies
Change the limit for the number of MIME headers
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\mimeheaders
Change the limit for the number of recipients
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\maxnumrecipients
Change the limit for the number of characters in Friendly Name
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\friendlynamelimit
Change the limit for the number of nested embedded messages
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\embeddedmessagelimit
Log SharePoint sync requests and responses
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\enablewsssynclogging
Turn on purge when switching folders
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\enablepurgeonswitch
Do not validate personal Contact Groups when sending e-mail messages
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\expandpdlusingcache
Allow hyperlinks in suspected phishing e-mail messages
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailenablelinks
Include Intranet in Safe Zones for Automatic Picture Download
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\intranet
Include Internet in Safe Zones for Automatic Picture Download
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\internet
Block Trusted Zones
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\trustedzone
Do not permit download of content from safe zones
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\unblocksafezone
Automatically download content for e-mail from people in Safe Senders and Safe Recipients Lists
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\unblockspecificsenders
Display pictures and external content in HTML e-mail
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\blockextcontent
Enable mail logging (troubleshooting)
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\enablelogging
Set message format
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\editorpreference
Outlook Rich Text options
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\message rtf format
Mail account options
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\send mail immediately
Specify path to Blocked Senders list
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailblockedsendersfile
Specify path to Safe Recipients list
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailsaferecipientsfile
Specify path to Safe Senders list
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailsafesendersfile
Overwrite or Append Junk Mail Import List
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailimportappend
Trigger to apply junk email list settings
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailimportlists
Add e-mail recipients to users' Safe Senders Lists
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailtrustoutgoingrecipients
Trust e-mail from contacts
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailtrustcontacts
Permanently delete Junk E-mail
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailpermdelete
Junk E-mail protection level
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\junkmailprotection
Hide warnings about suspicious domain names in e-mail addresses
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\outlookenablespoofyemails
Tracking options
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\receipt response
When sending a message
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\adhocreviewbehavior
Disable Mail Tips
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\disablemailtips
Display Sender Picture
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\showcontactpicture
Read signed e-mail as plain text
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\readsignedasplain
Read e-mail as plain text
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\readasplain
Message handling
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\autoformatplaintext
Outlook: Ad hoc reviewing
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\adhocreviewbehavior
Outlook: 'send for review'
- HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\explicitreviewbehavior