MS Outlook does not automatically send/receive

[metazone]

I wanted to respond to the person who asked this question because I had
the same problem and I could not find the correct answer either online
or at work. At work, MS Outlook began to not automatically send and
receive email - when I created an email, it would stay in the Outbox
until I manually clicked on the Send/Receive button (and I wouldn't get
email until I did the same). This problem had nothing to do with any
of the 'Mail Setup' settings (including scheduling automatic
send/receives at specified time intervals, when outlook starts and
exits, etc.). The problem: MS Outlook had lost the connection to the
mail server and it switched to 'Offline' mode. This mode stays the
same until you manually change it by clicking on 'Offline' in the
bottom right corner of MS Outlook and changing it to 'Connected'.

 

[Russ Valentine [MVP-Outlook]]

Only one of the many known (and frequently posted) causes for this behavior.
A search of this group would have returned it and all the rest of the known
causes.