Spam filter for 1&1 Mail inbox - stop junk mail effectively
Clean up your 1&1 Mail inbox on iPhone, Android, Outlook, and webmail — no email address change needed.
Also known as IONOS Mail.
If your 1&1 Mail inbox is filling up with junk mail, phishing attempts, and unwanted marketing email, Spamdrain adds an extra filtering layer and removes unwanted messages quickly as they arrive.
1&1 Mail includes basic spam filtering, but many users still receive newsletters, graymail, and phishing mixed into the inbox. Spamdrain filters the noise and learns quickly from your feedback.
1&1 and IONOS customers often use the same mailbox in webmail and external clients. Spamdrain monitors the mailbox and removes unwanted messages quickly.
We stop junk email and spam
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 1&1 Mail inbox issues
- bulk sender campaigns from partner marketing lists
- login-reset phishing that imitates hosting or billing notices
- spoofed administrative messages targeting domain owners
- repeat junk waves from rotating sender accounts
Why spam still reaches 1&1 Mail inboxes
Spammers constantly change tactics and often look legitimate. Provider filters must balance false positives, so some junk slips through.
A dedicated filter adds another layer, removing unwanted mail from your mailbox quickly so your 1&1 Mail inbox stays cleaner.
Widely seen in Germany among 1&1 and IONOS contracts, including custom-domain users.
How Spamdrain works with 1&1 Mail
Connect once and keep using your favorite apps.
1.
Connect your mailbox
Add Spamdrain in minutes. No address change needed.
2.
We analyze incoming mail
Spamdrain checks newsletters, graymail, phishing, and spoofing before delivery.
3.
Junk is quarantined
Suspected spam is held back so your inbox stays clean.
4.
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.