February 2025. It is well known that email senders block databases if there are no confirmations. I understand this, of course. Our company has been operating for over 20 years, and all contacts were obtained personally from clients through business cards, seminars, and so on over many years. All emails with people's names, that is, the mailings are fully personalized. Given the situation, I called in advance and spoke at length with representatives of Mailo. Since they are not the mailing operators, but rather franchisees or partners, they promised to help with the operator's questions regarding my database and asked to make an exception to look at the first mailing. We agreed. I registered. The interface seemed convenient, the domain was confirmed quickly, and I uploaded 199 verified client addresses and 1 corporate address for testing on the free plan (up to 200 emails). I ran the validator for 40 rubles. Of the 200 addresses, it marked 10 as problematic, even though all of them were correct and had been used for correspondence. Support returned 9 of them to the general list, but 1 they refused to return. I did a test mailing to my address on our domain, and the email did not arrive. It turned out that their IP address was listed on Spamhaus. bounced (host our domain.mail.protection.outlook.com [52.101.148.1] said: 550 5.7.1 Service unavailable, Client host [85.202.84.17] blocked using Spamhaus. To request removal from this list see https://www.spamhaus.org/query/ip/85.202.84.17 AS(1440) I thought that this happens sometimes, and I wrote to them to ask them to send an email and remove their IP from Spamhaus. This should be quite simple, if you believe the guides from Yandex. In response in the chat, I received a request from the new operator to provide confirmations for 4 random addresses from the database. But I hadn't sent any mailings to the database yet; I had only sent to myself. I called the girl I had been discussing with for a month, who said they would help with communication with the operator and ask them not to block me, but to allow me to conduct the mailing. However, on the phone, she had already forgotten her promises and said she could not help at all. The conversation in the chat then became a bit rude, with the girl trying to convince me that "even 30 years ago we filled out forms in stores and gave consent for mailings." Can you imagine, in 1995, when most people didn't even have PCs at home, she already had email and allowed mailings. In general, the service is decent, I liked the interface, support is quick, but not in our favor. It's good that the experience turned out to be free. I don't mind the 40 rubles.
