You should check to see if the messages that are being sent contain any links that would be considered questionable/spammy. You can also try taking the content of one of the messages and checking it’s spam assassin score ( https://spamcheck.postmarkapp.com ). Source: over 2 years ago

Build a clean email that passes a spam check with flying colors (https://spamcheck.postmarkapp.com/) then use a warmup service like lemwarm, inboxally or neverspam as mentioned in the other comments. Source: almost 3 years ago

The issue sounds more email centric. You're likely hitting the Apache SpamAssassin limit on the remote email servers. Use https://spamcheck.postmarkapp.com/ to check the score of emails you've had declared spam, and follow recommendations to improve. Source: about 3 years ago

Where do we locate you? https://ipinfo.io/ If the location data is incorrect, you can always submit a correction with us: https://ipinfo.io/corrections. - Source: Hacker News / 9 days ago

Note: You can check the quality of SOCKS5 or HTTPS proxy with companies like: https://ipinfo.io or whoer.net. - Source: dev.to / about 1 month ago

You need an access token from ipinfo to access their API. Go to ipinfo.io and sign up for an account. After signing up, you'll get an access token. Keep it handy as we'll need it in the next step. - Source: dev.to / 3 months ago

Stories: - name: get-ip-info steps: - name: get-ip url: https://api.ipify.org/?format=json http_method: GET - name: get-location url: https://ipinfo.io/${{steps.get-ip.response.body.ip}}/geo http_method: GET expectations: - field: Body operation: Contains value: "Australia" schedule: initial_delay: 10 ... - Source: dev.to / 4 months ago

IPinfo — Fast, accurate, and free (up to 50k/month) IP address data API. Offers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All paid APIs can be trialed for free. - Source: dev.to / 4 months ago