Popular messengers and the specifics of each of them

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The policy for using commercial mailings varies depending on the chosen messenger.

Viber allows the wide use of advertising messages, subject to the established rules.
In Telegram, you are allowed to send advertising materials only to subscribers of your own channel or group members.
WhatsApp only allows sending transactional messages and notifications, while advertising is only possible in response to a customer's initiative.
Facebook Messenger limits its messaging to service notifications only.
VKontakte allows free distribution of advertisements list of cocos islands keelings consumer email to community subscribers, and service messages by phone number.
Some organizations are moving away from traditional email or social media messaging, choosing messengers as their primary means of communicating with their audience. This decision is supported by high engagement and efficiency rates, such as Open Rate and CTR, which is the result of developers’ efforts to create a comfortable environment and a strict fight against spam.

Frequent spam mailings that are not carried out through official business accounts eventually lead to blocking. The basis for successful communication is the creation of official accounts in messengers, after which you can begin developing content.