Spam filter for Gmail inbox - stop junk mail effectively

Clean up your Gmail inbox on iPhone, Android, and webmail — no email address change needed.

Also known as Google Mail.

Official Gmail help and settings

How the best antispam service reducing junk mail works

If you’re trying to get rid of spam emails on Gmail and junk mail keeps filling your inbox, Spamdrain adds an extra filtering layer and removes unwanted messages quickly as they arrive.

Gmail’s spam filter is strong against known, high-volume spam, but newsletters, graymail, and evolving phishing still get through. Spamdrain filters the noise and learns quickly from your feedback.

Gmail inboxes are used across webmail, the Gmail app, and other mail clients like Apple Mail. Spamdrain monitors the mailbox and removes unwanted messages quickly before more junk piles up.

Already a Spamdrain customer? Here’s how to add your Gmail address to the filtering.

We stop junk email and spam

Spamdrain adds a second, stricter layer of spam filtering on top of Gmail’s own — no address change, no migration, connected in minutes. It’s trained by Spamdrain’s whole community of users, not just your inbox history, so it catches patterns a single account never sees on its own.

Spamdrain focuses on the types of email that most often slip through built-in filters:

Junk newsletters and promotions
Phishing attempts and spoofed senders
Graymail that clutters your inbox
Malicious links and attachments

Common Gmail inbox issues

Fake Google security alerts and “suspicious sign-in attempt” phishing
Billing and subscription scams that imitate Google or other well-known brands
Spoofed sender names posing as coworkers, banks, or delivery services
Promotional and graymail clutter that slips into the Primary tab instead of Promotions

Gmail’s filter also only protects your Gmail account — mail from a work address, an old ISP account, or a second inbox gets none of it.

Works everywhere you check Gmail

No separate app, no address change — Spamdrain filters your Gmail inbox the same way whether you check it on iPhone, Android, or the web.

Why spam still reaches Gmail inboxes

Gmail filters at scale, which makes it strong against spam it’s seen before and weaker against spam built to look fresh each time — a new sending domain, a slightly reworded subject, a spoofed name you recognize. That’s the gap Spamdrain is built to close.

For tips on stopping spam and junk mail in general, beyond Gmail, see our full guide.

How Spamdrain works with Gmail

Connect once and keep using your favorite apps.

Connect your mailbox

Add Spamdrain in minutes. No address change needed.

We analyze incoming mail

Spamdrain checks newsletters, graymail, phishing, and spoofing before delivery.

Junk is quarantined

Suspected spam is held back so your inbox stays clean.

You stay in control

Review reports, allow senders, and fine-tune filtering anytime.

What Customers Are Saying

Thank you! I appreciate the quick and helpful reply. Thanks for Spamdrain. It keeps me from going crazy with junk in my inbox.

I've been using this app for the past 3 weeks only. The product is exceptional in identifying spam and fraudulent emails that my other spam apps couldn't identify because of constant domain name changes!

Works well in removing known spam, and asks about any new mail that it is suspicious of giving you the choice to give it the 'all clear' or condem it to spam for evermore. Recommended to keep the clutter out of your inbox.

This beats all the rest and keeps spam out of my inbox. I've been using them for 3 years now and am very happy!

Excellent SPAM filter, trains quickly when new forms of SPAM appear. Highly recommended.

Best spam blocking app on the market hands down. Money well spent.

I’ve tried several apps that state they will block spam from emails. So far , all have failed until I found Spamdrain. It has blocked 90% of spam so far. If one sneaks through, you just click on it and state it’s spam and it never finds your inbox again.

Wow, what a spectacular improvement! I started with the trial, and it only took a few days to see I don't need to wait before buying the app. I don't understand why my ISP email provider isn't performing this same service for me. Doesn't matter, Spamdrain is doing the job well!

It’s hard to believe that I have finally found an app that actually helps tremendously with spam. My email inbox is cleaner than it has been in years. Very much worth the small amount of cost. You need to try it. Unfortunately everyone has a spam problem now

Your data remains private

You pay us a small fee so we never need to sell your data to anyone (unlike many others). We instead focus entirely on providing you with the best spam filtering in the world.

FAQ

Does Spamdrain work with Gmail?

Yes. Spamdrain connects directly to your existing Gmail account and adds a stricter filtering layer on top — no migration, no new email address.

Can I keep using my Gmail address?

Yes. Your Gmail address stays exactly the same; Spamdrain just filters what reaches it.

Do I need to switch apps or change my address?

No. Keep using iPhone, Android, or webmail with the same Gmail address you already have.

Is it safe to connect my Gmail account?

Spamdrain uses secure connections and only needs access to filter spam. You stay in control.

Can I customize what gets blocked?

Yes. Allow or block senders and adjust the filter to match your preferences.

How do I get started?

Start a free trial, connect your mailbox, and Spamdrain begins filtering right away.

How do I stop spam emails on Gmail for good?

Connect Spamdrain once and it keeps filtering spam emails in Gmail automatically — no need to keep manually reporting or deleting the same junk every day.

Take control of your Gmail inbox

Spamdrain comes with a 14-day free trial, so you can see how much of your remaining Gmail spam it actually catches before you pay anything. See pricing — for the cost of a coffee, most of the spam is gone.

Start your free trial