All good points, but the best way to do this is via the double opt-in route. With this method, the recipient is sent a second email to confirm.Probably purchased an "opt in" list. But "third party opt in" are risky business under the new laws and guidelines unless it is B2B. B2C can get risky if the use did not express directly to the company that is sending that they want the email.
B2B still allows a single one shot at a company as long as it is easy and clear on how to unsubscribe and the email is never used again if such a request is put in place. Problem is that people are getting around this by setting up a waterfall of new company names to send the mailings from. When someone unsubs for the first they get moved to the second etc.
So, B2C MUST have done a direct opt-in, B2B can still do a 'related' mail shot.
Still a grey area because so many people abuse it, but it can result in a rough ride if someone gets pissed about it so better safe than sorry.
Also, having defined well collected and maintained lists that are sub segmented as much as possible will always give better conversions and returns. Takes longer to get a massive list, but makes more money in the long run.
We use essential cookies to make this site work, and optional cookies to enhance your experience.