The fastest way to move an email back to your inbox

If a sender you trust keeps landing in junk, the quickest fix is to mark their message as "not junk" or "not spam" — the exact button name depends on your email provider. In Gmail, open the message and click the trash icon, then select "Report not spam." In Outlook, right-click the message and choose "Mark as not junk." In Apple Mail, click the flag icon and select "Not junk." One click tells your email filter that this sender is safe, and future messages from them are more likely to reach your inbox.

That single action works for most people most of the time. But if the sender keeps landing in junk even after you mark them safe, or if you want to prevent the problem before it starts, you need to take a second step: add them to your contacts or create a filter rule. The method you choose depends on whether you want to trust just that one sender or an entire domain.

Key Takeaways

  • Click "not spam" or "report not spam" on the message itself — this teaches your filter that the sender is legitimate.
  • Add the sender's email address to your contacts to signal that they are someone you know and trust.
  • Create a filter or rule that automatically moves all mail from a sender or domain straight to your inbox, bypassing the junk folder entirely.
  • Check your junk folder weekly for the first month after you start receiving mail from a new sender, because filters take time to learn.
  • If a sender's domain is on a blocklist, no personal action will help — the sender must contact their email provider to get removed.

Add the sender to your contacts

Email filters treat messages from people in your contact list differently than messages from strangers. When you add someone's address to your contacts, you are telling your email system "I know this person" — and that signal carries weight. Most providers use contact status as one factor in deciding whether a message is junk.

In Gmail, open the message and click the three dots menu, then select "Add to contacts." In Outlook, right-click the sender's name and choose "Add to contacts." In Apple Mail, click the sender's name at the top of the message and select "Add to Contacts." The process takes five seconds and when ready improves the chances that future messages from that sender will reach your inbox.

Create a filter or rule to bypass junk entirely

If you receive regular mail from a sender or organization and want to may provide it never lands in junk, create a filter rule. This tells your email system to move messages matching certain criteria straight to your inbox, skipping the junk folder altogether.

In Gmail: Open a message from the sender. Click the three dots menu and select "Filter messages like these." Check the "Never send to spam" box and click "Create filter." From that point forward, every message from that sender goes directly to your inbox.

In Outlook: Go to Settings, then "Mail" and "Rules." Click "Add new rule." Under "When the message arrives," select "From" and type the sender's address. Under "Do the following," select "Move to folder" and choose your inbox. Click "Save." Outlook will now route all messages from that sender directly to your inbox.

In Apple Mail: Open a message from the sender. Click "Mail" in the menu bar, then "Preferences." Go to "Rules" and click "Add Rule." Set "From" to the sender's address and "Perform the following actions" to "Move message to mailbox" and select "Inbox." Click "OK." Future messages from that sender bypass junk filtering.

Whitelist an entire domain if you receive mail from multiple people

If you receive messages from different people at the same organization — for example, your bank, your insurance company, or a university — you can create a rule that trusts the entire domain instead of just one person. This prevents any message from that organization from landing in junk, no matter who sends it.

In Gmail, use the filter method above but type the domain in the "From" field as @example.com (replace "example.com" with the actual domain). In Outlook, do the same in your rule. In Apple Mail, the process is identical — just use @domain.com instead of a specific email address. One rule now covers all senders from that organization.

Why legitimate mail lands in junk in the first place

Email filters look at dozens of signals to decide whether a message is junk: the sender's reputation, whether the message came from a known blocklist, the language and formatting of the email, whether links in the message are known to be malicious, and whether you have interacted with the sender before. A legitimate sender can land in junk for reasons that have nothing to do with the content of their message.

New senders are especially vulnerable. If an organization just started sending you mail and you have never marked their messages as safe, the filter has no history to work with. Banks, utilities, and government agencies sometimes land in junk because their mail servers are misconfigured or because they send from a shared server that also sends spam. Your filter cannot tell the difference.

The most common reason a trusted sender suddenly lands in junk is that they changed their mail server or started sending from a different domain. If you have been receiving mail from someone for months and it suddenly stops reaching your inbox, ask them whether their email setup changed recently.

What to do if marking as safe does not work

If you have marked a sender as safe, added them to your contacts, and created a filter rule, but their messages still land in junk, the problem is usually not on your end. The sender's domain or mail server may be on a public blocklist — a list maintained by security organizations to flag servers known to send spam or malware. No action you take in your inbox will override a blocklist.

Ask the sender to contact their email provider's support team and ask whether their domain or server is on a blocklist. The provider can request removal, but the process takes days or weeks. In the meantime, you can ask the sender to use a different email address or domain if they have one available.

If the sender is a bank, utility, or government agency, contact them directly and ask whether they have an alternative email address you can use. Many large organizations maintain multiple mail servers specifically to avoid blocklist problems.

Check your junk folder while you wait for filters to learn

Email filters improve over time as they see more of your behavior. When you first start receiving mail from a new sender, check your junk folder once a week for the first month. This catches any messages that the filter is still uncertain about, and each time you mark one as safe, you train the filter a little more.

After a month of marking messages as safe and creating filter rules, your email system should have learned that this sender is legitimate. But during that learning period, the junk folder is your safety net.

Frequently Asked Questions

Does marking one email as safe affect all future emails from that sender?

Yes. When you mark a single message as "not spam" or "not junk," you are teaching your filter that the sender is legitimate. Future messages from that sender are weighted more favorably. However, if the sender's domain is on a blocklist or their mail server has a poor reputation, the filter may still catch some messages — which is why adding them to contacts and creating a rule provides extra protection.

What is the difference between marking safe and creating a filter rule?

Marking a message as safe trains your filter to recognize the sender as legitimate over time. Creating a rule guarantees that messages matching your criteria go directly to your inbox, no matter what. A rule is stronger and faster, but marking safe is easier if you only need to trust one or two senders.

Can I whitelist a sender on my phone?

Yes, but the steps vary by phone and email app. In Gmail on iPhone or Android, open the message, tap the three dots, and select "Report not spam." In Outlook mobile, swipe left on the message and tap the flag icon. Creating a full filter rule usually requires a computer, but marking messages as safe works on any device.

Why does my bank keep landing in junk even though I marked it safe?

Banks often send from multiple mail servers or domains, and marking one message safe does not cover all of them. Create a filter rule using the bank's main domain (for example, @bankname.com) instead of a specific email address. If that does not work, the bank's mail server may be on a blocklist — contact the bank and ask them to check with their email provider.

If I add someone to my contacts, will they see my contact information?

No. Adding someone to your contacts is private — it only affects how your email filter treats their messages. The sender has no way of knowing you added them to your contacts.