SNDS & Signal Spam

Automate your SNDS & Signal Spam reporting to track spam traps and complaint rates.

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Track complaints at Hotmail,, Laposte, Sfr, and Orange.

What is SNDS?

Microsoft SNDS enables mailers to monitor their sending reputation to Hotmail/ email addresses. You can utilize this data to identify campaigns resulting in a high complaint rate or excessive spam trap hits. If you’ve ever been blocked at, this free tool is a must-have in your deliverability arsenal.

What is Signal Spam?

Signal Spam is a French non-profit composed of senders, ISPs, law enforcement, and government agencies formed to combat spam. Similar to SNDS, Signal Spam tracks your complaint rates at Laposte, Sfr, and Orange and provides a direct data feed into 250ok. You can see complaints broken down by day, IP address, mailbox provider, and more.

More data sources, one comprehensive reporting engine.

Sign up for SNDS & Signal Spam (it's free)

Click here for a walk-through of setting up SNDS. For more information on joining Signal Spam, click here.

Point your data feeds to 250ok

Log in to 250ok and add your data feed links in just a few easy steps.

Enjoy automated reporting

See spam filter results, complaint rates, bounce rates, spam traps, and more.

Are you a #SeriousSender?