Buying an email list is always a bad idea . There is no more to it. There is no way it can help your email marketing strategy. It's a scam!
It may seem like the easiest way to expand your database and increase the reach of your campaigns, but it can damage your communication strategy and end up being very expensive.
If someone has told you this is a good idea, here are 6 good reasons to ignore their advice.
1. Many listings contain incorrect or non-existent addresses
You will not find verified contacts on these lists, and very often they have gambling data japan phone number not even given their consent, and many addresses will be incorrect or non-existent at all!
Sending an email campaign or newsletter to a list with incorrect or non-existent addresses creates many bounces , both soft and hard (the latter being the most dangerous).

What does this mean? That your delivery rate will be very low (not to mention the opening rate) and that the reputation of the IP address you are using to send will decrease dramatically , seriously compromising your future sendings. If these consequences are not bad enough, also consider that your subscription to the email marketing platform you are using could be cancelled!
2. There are no quality listings for sale
Do you know what an “honest” seller of mailing lists offers in many cases? A list of addresses copied at random from the Internet!
Of course, he could tell you that all the contacts are “subscribers” or verified email addresses, but that would only be to trick you . Even if some of them were real, they wouldn’t serve your business anyway.
In fact, such a generic address list will never be relevant and effective for your purposes, because the contacts in question have never expressed that they want to receive your messages and might even be totally uninterested in your product and/or service.
3. A list is useless if it does not contain interested users
This is one of the main reasons why you should never buy a mailing list.
The secret to email marketing is to build trust with your recipients by providing them with relevant content. When contacts consent to receive your emails, they are confirming their interest in what you have to say.
Buying email lists is a bad strategy, because it only takes your money and wastes your time attracting people who do not want to receive your content. It also generates complaints and spam reports !