Set ‘Check Spelling Before Sending’ On OWA for All Users
You can specify that all users are prompted to ‘Check Spelling’ before sending e-mails on OWA. This can be turned on globally by using the below commands –
Log on to the Exchange server and then open Exchange Powershell and Run the Following Command –
Get-Mailbox | Set-MailboxSpellingConfiguration -CheckBeforeSend $true -dictionarylanguage EnglishUnitedKingdom
You should then open command prompt and run the following command –
This will restart Internet Information Services so you will not be able to access websites running on this server until this completes.