The fastest way to block an email sender on iPhone
Open the email from the sender you want to block, tap the sender's name or email address at the top, then tap Block This Contact. That sender's future emails go straight to trash and you won't see notifications for them. If you've already deleted the email, open Mail settings, go to VIP or Mailboxes, find the sender in your trash or sent folder, and block from there.
The block works across all your email accounts on that iPhone — if you block someone in Gmail, they're blocked in Apple Mail too. But the block only affects that device. If you use the same email account on an iPad or Mac, you'll need to block them there separately.
Blocking is permanent until you undo it. To unblock someone, go to Settings > Mail > Blocked, find their name, and swipe left to delete them from your blocked list.
Key Takeaways
- Tap the sender's name in any email and select Block This Contact to send all their future messages to trash automatically.
- Blocked senders' emails disappear from your inbox and you receive no notifications, but the block only works on the device where you set it.
- You can unblock someone anytime by going to Settings > Mail > Blocked and swiping left on their name.
- If you want to filter emails without blocking the sender completely, use Mail rules to sort them into folders or mark them as read automatically.
Creating rules to sort emails from specific senders
iPhone's Mail app doesn't have a built-in rules editor like desktop email clients do, but you can use the VIP feature to flag important senders and create custom notifications for them. Tap a sender's name, then tap Add to VIP. Their emails appear in a separate VIP mailbox and you can set a custom notification sound just for them.
For senders you want to de-prioritize without blocking, create a folder and manually move their emails there, or use your email provider's own filtering system. Gmail users can set up filters directly in Gmail on the web — create a filter that automatically archives, labels, or deletes emails from a specific sender. Those filters sync to your iPhone's Mail app. Outlook users can create rules in Outlook on the web that move emails to folders automatically.
The advantage of using your email provider's filters instead of iPhone's block feature is that the rules work on every device you use — your phone, computer, and web browser all follow the same rules.
Blocking entire domains or email addresses that look suspicious
If you're getting emails from multiple addresses at the same domain (like spam@sketchy-site.com and noreply@sketchy-site.com), blocking each one individually is tedious. Instead, report the email as junk first. Open the email, tap the trash icon, then tap Report Junk. This tells Apple's Mail system the sender is spam, and similar emails may be filtered automatically in the future.
For Gmail accounts, you can block an entire domain. Open an email from that domain, tap the three dots, select Block [sender's email], and Gmail will block that specific address. To block the whole domain, you need to use Gmail's web interface: go to Settings, Filters and Blocked Addresses, and create a filter for emails from anyone at that domain.
Reporting junk is more effective than blocking for mass spam because it trains the system to recognize similar patterns. Blocking only stops emails you've already seen.
Why blocked emails still sometimes appear
If you see emails from someone you blocked, the most common reason is that they're using a different email address. Blocking stops emails from the exact address you blocked — if they send from a new account, it bypasses the block. Check the sender's full email address (not just their name) to see if it's different from the one you blocked.
Another possibility is that the email arrived before you blocked them. Blocked emails go to trash, but emails that came in before the block was set stay in your inbox. You can manually move them to trash or delete them.
If you're using multiple email accounts on your iPhone, make sure you blocked the sender in the correct account. A block in your Gmail account won't affect emails coming to your work email account.
Differences between blocking, reporting junk, and unsubscribing
Blocking stops all emails from one specific address and sends them to trash. You won't see them or get notified. Use this for people you know personally or repeat harassers.
Reporting junk tells Apple (or your email provider) that an email is spam. The system learns from your report and may filter similar emails automatically in the future, but the sender can still email you again. Use this for unsolicited marketing or obvious spam.
Unsubscribing removes you from a mailing list. Most legitimate marketing emails have an "Unsubscribe" link at the bottom. Clicking it tells the sender to stop sending you emails, but it doesn't block them — they could add you back to a list later. Use this for newsletters or services you signed up for but no longer want.
If an email claims to have an unsubscribe link but doesn't, or if unsubscribing doesn't work after a few weeks, report it as junk instead.
Setting up VIP and custom notifications for important senders
The opposite of blocking is the VIP feature. Tap any sender's name and select Add to VIP. Their emails go to a separate VIP mailbox at the top of your inbox, and you can set a custom notification sound so you never miss their messages. This is useful for work contacts, family, or anyone whose emails matter most to you.
You can add up to as many VIPs as you want. To remove someone from VIP, tap their name and select Remove from VIP. To see all your VIPs, open Mail and tap the VIP mailbox.
VIP doesn't block anyone else — it just prioritizes certain senders. If you want to both prioritize some people and block others, you can do both on the same device.
What happens to blocked emails and how long they stay in trash
Blocked emails go directly to your trash folder. They don't appear in your inbox, and you won't get a notification that they arrived. You can still see them if you open the trash folder, but most people never check it.
How long emails stay in trash depends on your email provider. Gmail keeps trash for 30 days before permanently deleting it. Outlook keeps it for 93 days. Apple Mail's trash behavior depends on which email account you're using — if it's an iCloud account, trash empties after 30 days. Check your email provider's settings to see if you can change this.
If you block someone and then change your mind, unblock them before their emails are permanently deleted from trash. Once they're gone, you can't recover them from your iPhone — you'd need to contact your email provider's support.
Frequently Asked Questions
Can someone tell if I blocked them?
No. When you block someone, they don't receive a notification. Their emails simply go to your trash. If they try to contact you through another method to ask why you're not responding, that's the only way they'd know.
If I block someone in Mail, does it block them in iMessage or FaceTime too?
No. Blocking in Mail only affects email. To block someone from iMessage or FaceTime, open the conversation, tap their name at the top, scroll down, and tap Block This Caller. You need to block them separately in each app.
What's the difference between blocking and muting a conversation?
Muting a conversation silences notifications but keeps the emails in your inbox — you can still read them if you want. Blocking sends all emails to trash and you won't see them unless you open the trash folder. Use muting for low-priority senders you might want to check later, and blocking for people you don't want to hear from at all.
Can I block emails by subject line or keyword instead of by sender?
iPhone's Mail app doesn't support keyword filtering directly, but your email provider does. In Gmail, create a filter that searches for a keyword and automatically deletes or archives matching emails. In Outlook, create a rule that looks for specific words in the subject line. These filters sync to your iPhone.
If I block someone and they email me from a different account, will that be blocked too?
No. Blocking only stops emails from the exact address you blocked. If they use a different email address, those emails will come through normally. You'd need to block each address separately.