There are several ways to block mailing. The easiest way is to unsubscribe from the official mailing list, which you subscribed to of your own free will, but it is more difficult to get rid of intrusive mailing / advertising if it is spam.
Instructions
Step 1
The least difficulty in unsubscribing from mailing is the mailing system of the official mailbox service. Such letters come to mailboxes located on free mail hosting services: mail, rambler, yandex, etc. Therefore, if your mailing list comes from an official source, the simplest solution would be to go to the mailbox settings and click "unsubscribe from all mailings."
Step 2
It is not difficult to unsubscribe from mailings if they come from official news and other mass portals. In general, any sites that have proven themselves well (according to user reviews). To unsubscribe from the mailing list, the source of which are such sites, you need to do this: you need to open the letter sent using the mailing list of that site and view it. Usually there is an inscription “unsubscribe from the mailing list” at the bottom. You just need to click on this item, and then confirm your decision.
Step 3
Sometimes the newsletter comes from the site where you are registered, but at the bottom of the letter there is no such item "unsubscribe from the mailing list", then you need to go to the site and look for contacts in order to contact the administration. Usually, the contacts of the administration are written in a special section "contacts", "communication" or a similar name. As soon as you find a means of communication, write a letter with a request that they stop sending you the mailing list.
Step 4
If the problem persists, i.e. you write a letter to the administration, but there is no answer, or the mailing comes from an incomprehensible source, then it is quite possible that this is spam. It needs to be blocked separately. In some mail systems there is a button "this is spam", you should select it opposite the letter. If this function is not available in your mailbox, then the e-mail of the spam sender should be blacklisted. In order to avoid such troubles, you should not post your personal email account in the public domain. Or at least use simple security tools (like
