Add a ! or a star to mark an outgoing email as urgent in Gmail
132002
Send urgent mail in Gmail
21763
Automatic e-mail/text message when a calculation has finished?
38081
What events trigger an inbox notification?
76750
Fetch an email with imaplib but do not mark it as SEEN
83096
Send from Gmail with another email address as the Reply-to or From address
14230
Create a Gmail filter for Calendar Notifications
25547
Insert HTML markup into Gmail signature
49417
How can I theme the outgoing contact mail?
141108
How to leave empty last name or both in Google Mail?
118054
How to tell a client in a form that they can enter their email OR their tel # (but both are not necessary)?
153208
Edit Mail rules manually
61905
Can you have two different names for the same alternative ("send mail as") email address in Gmail?
41716
Stop Gmail notifications when receiving email from particular sender
93529
Can I bounce messages (not forward, but a true bounce) in Gmail?
8104
Is there any way to send an email from a Gmail plus address?
63425
How to show a required message next to input with Javascript?
5904
Is there any way to modify the mail headers in an outgoing message sent using Gmail?