I will argue is that there has to be way to stay safe on both sides (the former can change much more easily than the latter). Of course one may argue that's better to get banned by an email marketing service than getting your static IP shitlisted. However, this is also not a perfect solution as it reduces the quality of the final email list, and may put you in danger when using it for marketing via your email delivery service/provider due to high bounces/errors reports. And even when someone offers them to you, those proxies get banned within minutes.Īnother bypass is just go for the syntax and domain verification checks, and leave the smtp response verification check behind. However, as far as I know there are almost no SOCK5 proxy providers that offer the port 25 open that is required for the verification process. One common solution suggested is to use SOCKS5 proxies instead of my own IP when doing the test. is it reasonable to worry for getting blacklisted by the servers just for doing bulk smtp email validity requests? And if yes how to avoid that?! *** Currently I worry that using the Software to check the smtp responses of the emails of such huge list will result in getting my static IP address banned from several servers. So far I had a rather good performance and responses(Yay!) BUT I want to go bigger scale and verify a list of 100,000 emails with the Atomic Mail Verifier. Please have in mind that I use my own static IP when verifying the emails, and that port 25 is open in this IP. Then I upload the final list to my email delivery service (like MailChimp) and pray for good results and not getting banned. I then use Atomic Mail Verifier for the final verification. Lately I have been experimenting with email grabbing (via SB) to compile niche lists, and then apply a lot of filtering to make them as relevant as possible. This is a call to everyone who has a sufficient experience in any email verifying software.
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