Outlook
Outlook 是Exchange邮件服务器对应的邮件客户端程序。
ost & pst
ost is local cache file and is safe to delete
pst is unique, and there is no copy on the Exchange server
Run Outlook in Safemode (without add-ins loaded)
cd C:\Program Files\Microsoft Office\Office16
outlook /safe
Recall an email in Outlook
From Sent Items, double click the email
from the top menu, click Actions->Recall This Message, default setting as below:
Outlook profile
From control panel->Email, we could check the current Outlook profile and create a new one as needed