How to organize a mailing list so that you don't get banned

Question

Email

Hello, dear Khabrovites.

There is a project with 10k users. There was a need to inform users about the innovations of the project. We chose the mailing method.

But there are questions. How to make sure that the IP address is not banned for mass mailing letters?
I heard there was a rule that you can send up to 200 letters per hour from one IP. How many letters can be sent, with what frequency, how best to implement this task?

Thanks in advance for your replies.

PS I do not consider the option with third-party services.

Answer 1

I periodically send mailings from my server to 20-30 thousand users.
At the end of the letter, there is a mandatory link to unsubscribe from the mailing list, the List-Unsubscribe header in the letter headers, well-configured SPF and PTR records for the domain/IP. For several years, I have never been on any black list, mail is sent to our local mail servers (mail.ru, yandex.ru, etc.) at the speed of light.
Another tip: encode Russian letters in letter headers in base64 with encoding.
PS and no spam! :)

Answer 2

We send millions of emails per hour (I really don’t know how many IPs we have) ... so this is definitely not a parameter The
question can be divided into 2 parts:
“What we send” and “How we send”
In addition to the previous speaker:
Email content - run for example through Spamassassin and see what he swears at.
The sending itself - make sure that the sender has a real address, the sending was from this domain
Well, yes - do not send out fawn)) ... Do not send spam - the very first rule if you do not want to be identified as spam)))
And if you send through which - the provider is generally their headache ...

Answer 3

you can send up to 200 emails per hour from one IP

This is more like a hoster / provider limitation, I have the same on one of the hostings.

Answer 4

Here is what they told me in Yandex support (we place our mail in the traffic rules):

Depending on the nature of the messages and how our spam defense will "like" them, you will be able to freely send about 2,500 messages per day from your Yandex mailbox.
I also recommend that you familiarize yourself with how Yandex sees "fair mailing": http://help.yandex.ru/neomail/?id=1046080 .

Answer 5

I also have my own project with a mailing list, but I need to send out up to 500 a day. letters.
I send them with an interval of 61 seconds (1 minute + 1 second).
To check in this thread, I always send it to a test box on another domain.
Letters always arrive.
I hope this information will be useful to you.

Answer 6

Through mutt I send a letter (I use google smtp). Described instructions here.