Checking if an ORG Wide Email Address has been verified in Apex
41311
To Check if Org-wide email is verified in APEX
104934
How long can an Apex identifier (variable) name be?
5491
confirm email or email verification later?
48736
How can I find out if the current user is in a specific group?
130892
How to test that Apex Batch finish() sends an email?
144430
Received multiple email from apex trigger
44277
How to validate smtp credentials before sending mail?
89965
How to retrieve email address of current user?
48924
Approve/Reject many Records at once via Apex
150250
What is the maximum length of a valid email address?
108845
How do I base an outlook rule on the number of "To:" addresses?
110125
Validating email addresses using jQuery and regex
86475
Powershell and checking for Site existence
135412
Does Stack Exchange have an email notification option?
108315
Checking to see if a user has a licence for a managed package
9840
How to Test Messaging.sendEmail
51458
A user's original email address is retained in the system even after they've changed it on all sites (privacy risk, potential Area 51 sync issues)