No codes from

At the time of writing the article (05.11.2022), the situation resolved itself, without any edits on our part.

Often the most effective action is inaction.

Senior of any programming language

After the 20th of October, many users working with Facebook through our service faced the problem of receiving emails. In most cases, the codes  are not sent to our services. In this article we will talk about the possible causes of this situation (in my opinion) and about one of the resolving way.

The subject of emails and domains is quite extensive. There are many things to discuss. If you like articles in this format, let us know and we will continue writing.

I am not Facebook security department employee and my opinion about this situation may be wrong. But I know for sure (checked) that emails with the code are not sent to working domains, working emails.

Sections of the article:

  1. The impact of our technical work in this story.
  2. What is the difference between popular and our domains?
  3. Why can your domain be banned?
  4. Private IP.
  5. What can we do for you?

The impact of our technical work (13/10/2022) in this story.

It’s all your fault, and your tech. work

A regular Facebook user

We would really like all the problems to be caused by the technical work. After all, if the problems are because of us, then they can be identified and corrected, but unfortunately they are not.

Because of the technical work, you can only  get the NO_ACTIVATION error. It is connected with the fact that we lost data for 5 days of our work in April 2022. And now online we are changing the structure of our databases that can be the reason of such errors.

The problem with Facebook is in the not sending the letter with the code. Other emails (“Forgot password”, notifications about new friends or messages) — still come.

You can check the work status of mailboxes and domains by sending an email letter from your personal email and receiving it from our support.

In your opinion, if we can give you a letter sent from your mail, then why can’t we give you a letter from Facebook? Write to the chat, it’s interesting to read.

“In general, guys, I tried to link a new mail to gmail, the letter arrives immediately, I communicated in other chats, also passwords come to all domains”

What is the difference between popular and our domains?

All of the following conclusions are based only on the author’s personal point of view.
There is no guarantee that this is the way of working.
The way of using this information is up to you.
The service and the author are not responsible for your decisions.

The difference between them is really big, and it lies in the trust (trust of the site where you register using your mail).

Imagine you’re a Facebook security system and explore the process of verifying a registration request. We will explore the most difficult (and the most interesting) option, analyzing only the protection of the entered mail.

To make the article shorter – I simplify some technical things giving you only the basis. An experienced user will surely find nuances that he will want to discuss in our chat.

Possible mail verification algorithm:

  • API request
  • Firstly, we check domain for possibility of receiving emails. For this purpose we will use one interesting Google tool – DIG.
  • One (MX) – two (A) – three (IP) and we know that domain is by the well-known company Google

The site considers the domain trusted, because in order to get such a mailbox, the user will also have to register there, which cannot be said about custom domains on our own servers…

Checking them we can see something like this:

What can we recognize in this picture?

  • The same MX records
    Personally, I think it is OK. For example, Yandex also has, but still. If it is possible, it is better to randomize.
  • The same IP address on all our domains.
    Our IP addresses are not (and will never be) on white lists that are widely available (Google, for example).

Why can your domain be banned?

Checking your IP, the site that accepts registration can simply remember it.

After checking it on whitelists with trusted addresses and not finding them there, the site may think that it’s just some organization or a person who prefers to use his personal domain to work on the network.

But doing such conclusions just to do it is a waste of resources. Therefore, the site will definitely accrue “points” to same IP address and will add them every time it notices registrations from it.

For example, on average, organizations register accounts for 5-10 employees. But your domain breaks all records and makes out an entire village of 5,000 accounts for one domain! What will the site do? Right. Will block the domain. And what will you do? Right. Register a new domain linking it to the same IP (after all, you don’t want to deal with new servers), and continue again.

And now to the points I mentioned above. By banning 3 such domains, you will receive 3 penalty points. The site will consider your organization “suspicious” and will block the IP address of the server that is the recipient of your emails.

After blocking the domain by IP, the following may happen to you:

  • Shadow-ban
    You have the registration, everything is OK, but still something is wrong. But what is wrong you don’t know. You go through proxies, software, user agents … but still no result.
  • You cannot register
    It may be written that the mailbox is already exists or it is the incorrect mail format
  • The most likely and the simplest  – the email letter is not sent

Private IP

Private IP addresses for a domain have the same meaning as proxies for your accounts. Mostly they are taken for anonymity, to make impossible to track and block the entire chain of accounts.

Private IP addresses  have several features by which they can also be tracked and blocked by hundreds (but at the moment I do not know of any such case):

  • Subnets. IP addresses for domains are often in the same subnet, because it is pretty expensive.
  • Provider. One provider, which is not popular with sites, but really popular among suspicious accounts. It will definitely be blocked with the whole address grid
  • Geolocation. They may also pay attention to the country in which the IP address of the domain is registered.

What can we do for you?

The above information may seem complicated to someone or just there is no desire to deal with that technical things. In this case we can make everything “turnkey”.

Prices for Private IP

Without choosing subnet, geo and provider1000rub first month, then 500rub / month
With choosing subnet1500rub first month, then 500rub / month
With choosing provider5000rub first month, then 1000rub / month

Setting MX, A records by support agent – 100rub / domain

Unfortunately we cannot guarantee Facebook to live up all your expectations even after such manipulations (after all anonymity is a complex process). But we know for sure that:

  • Individual IP addresses will be clean (not used in our system);
  • The system will work properly, and if something happens, you can always contact us for help.

Have more questions? Contact us on the site or in Telegram

Thank you for your time and using our services ❤️