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The best encrypted messaging apps End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. To delete a channel with over 1,000 subscribers, you need to contact user support Your posting frequency depends on the topic of your channel. If you have a news channel, it’s OK to publish new content every day (or even every hour). For other industries, stick with 2-3 large posts a week. 5Telegram Channel avatar size/dimensions
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