It’s been two months since I am running a mail server. I worked on a beautiful UI like SendGrid and MailGun for more than six months. I plan to start a transactional email service.
I bought a range and rented another /24 range because I didn’t want to have a bad neighbour on the subnet. I even got my own ASN because jerks like UCEProtect often put big ISPs on a blacklist at the ASN level.
Of course, I have got a decent experience with this. I wrote my own SMTP server, email routing, and other things such as bounce and suppression handling. In a sense, everything is fine. RDNS, DKIM, DMARC, and SPF.
I know that IP needs to warm up, so that’s where I started. I paid for a few services to help me warm up, and it took me about two months to do so. Okay so far. The email was delivered 100% of the time to Gmail, but not at all to Yahoo and Outlook. The delivery rate to these two companies started to get better around last week, though. Some IP addresses started getting a 100% delivery rate.
Then, I started testing my service on one of my websites. Of course, 100% transactional emails with account confirmation links ONLY. It was working great. Nearly 2,000 emails, 3,000+ opens and about 2,500 clicks daily on an average.
I’ve also subscribed to Glock Apps and MXToolbox to measure my email deliverability and monitor IPs.
Just today, I received an email with all half of my active IP addresses and sending/tracking domain blacklisted by Spamhaus. They categorize it under “spam domain”, but I looked through my server logs (yes, everything is logged) and found no evidence of spam. Only transactional and warmup emails sent. I opened a ticket with Spamhaus and refuse to unblock my IP addresses and domains.
I spent 6 months and $20,000+ working on this, only to be butchered by Spamhaus. I want to kill myself. How can Spamhaus be the police, judge and the executioner?
Haha. UCEProtect are biggest cunts who ask for money for whitelisting. We tend to ignore them.
Did you ask spamhaus for headers of email IDs they marked as spam? Or did they give any reason?
Also, who is using your service?
They did not provide any reason and just mentioned that they are unable to remove the block at the moment. Now, my replies are being ignored.
Only I am using the service (warmup + transactional emails sent through my other site) right now. I haven’t started selling the service to others yet.
Basically, services like Folderly run their own private network of email addresses (on G Suite). Their service opens and interacts with emails, simulating real user behavior, to test and improve email deliverability and sender reputation.
This has been going on for at least a decade, I’m not really sure how you can spend half a year and 20k doing something without stumbling upon countless examples of the same behaviour from Spamhaus & Co.
Sorry that this happened to you.
I was really confident that I could maintain a good, positive IP reputation which I did. Until I got banned randomly.
The software that I built has features to combat end-user spam:
- Hourly Limit
- Spam Filter
- LLM-based Spam Filter (runs every 5,000 emails)
- Account Approval (where every user and their use case is verified by having a small chat with them first)
At my previous workplace we were hosting separate email servers for each customer on their own, private application instance. One of our clients was a national postal service from Europe, their corporate side forced them to use the highest notification frequency they could configure in our software upon all users.
After some time, their IT started reporting our IP address to various spam lists and they even sent abuse report to AWS. It was fun…
At least for me, I always made sure to never touch anything email-related, that’s how you become the “email guy”.
Spamhaus is the worst for filtering mails, I used to have their DNS based block list as a factor for my incoming mail spa filtering, but they started to say a whole bunch of other mail servers were sending spam.
I had to remove that factor from my incoming mail filters, as it wasn’t effective anyway. (For filtering incoming mail, the filter that seems the most effective at blocking spammers is just sleeping for 2 seconds at the start of a connection, and then blocking any client that has send any bytes to the server, if they haven’t send any bytes, just send the hello message)
jerks like UCEProtect often put big ISPs on a blacklist at the ASN level.
yea, just ignore them, no one major uses them & even if you do everything right, they still blacklist you, it’s such a scam and the guy running it is a major dick nozzle
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