All the same, users who specified [email protected] during registration should send a confirmation letter or not?

Question

Domain Name System

People often register for events and leave [email protected] as their contact e-mail.....
There is such a thing as Role Accounts Blacklist... ie. sending a letter to this mail, often several employees in the company receive it, they do not have a specific owner. And this, in turn, can lead to spam complaints. the confirmation letter in registration refers only to a specific person. Or is it not so relevant in Russia and we use such mail as usual? Or prevent users from leaving such mail...
In general, the question is: based on your experience - such mails ([email protected], [email protected]) in Russia are used by one person we need (who leaves this mail during registration) or is it an anonymized address that may not exist / or belongs to everyone = no one in the company and no one is looking at it?
And one more question: can an address without a valid DNS or a valid MX server still exist? If there are errors in the DNS and MX records, will the recipient still receive the email?

Answer 1

I'm not a pro in such matters, but my IMHO if someone has registered and this requires confirmation, then why can't the one who did it even go to the general mail and not do it?
I think it's stupid to ban.

Answer 2

mrusklon correctly described everything with no problems with confirmation. The main thing is not to send any letters to this box other than confirmation. Or send only if they are very important and related to the action in the account. And it is desirable that the user needs to put a tick in the settings in a conspicuous place to send something and not to send something. And make an adequate reply for 1 snare.