Marking an email as “not spam” (or unspam) differs slightly between email clients. Here's how you can do it on the most common ones:
1. Gmail (Web & Mobile)
Web:
Go to the Spam folder (on the left sidebar).
Open the email.
Click the "Not spam" button at the top.
Mobile App:
Tap the menu ☰ and go to Spam.
Open the email.
Tap the three dots (⋮) > "Report not spam".
2. Outlook (Web, Desktop & Mobile)
Outlook Web (Outlook.com / Office 365):
Go to the Junk Email folder.
Open the email.
Click "Not Junk" > Optionally select "Never block sender".
Outlook Desktop App:
Go to the Junk Email folder.
Right-click the email.
Choose "Junk" > "Not Junk".
You may be asked to always trust the sender.
Outlook Mobile App:
Go to Junk.
Open the email.
Tap the three dots or More, and select Move to Inbox or similar.
3. Apple Mail (iOS & macOS)
iPhone/iPad:
Go to the Junk folder.
Open the email.
Tap Move Message > Inbox.
Mac (macOS Mail app):
Go to the Junk folder.
Right-click the email or use the Message menu.
Choose "Move to Inbox" or "Mark as Not Junk".
4. Yahoo Mail
Web:
Go to the Spam folder.
Open the email.
Click "Not Spam" at the top.
Mobile App:
Open Spam, then the email.
Tap the three dots and select "Mark as not spam".
5. Thunderbird (Mozilla)
Go to the Junk folder.
Select the email.
Click the "Junk" flame icon to toggle it off.
You can also right-click > Mark > As Not Junk.
6. ProtonMail
Go to the Spam folder.
Open the email.
Click Move to Inbox or Mark as Not Spam.
Tips to Prevent Future Spam:
Add the sender to your contacts/safe sender list.
Mark false positives as "Not Spam" consistently.
Avoid moving spam messages directly to the inbox without marking them, as it may not train the filter.