Yzetien
Junior Member
- Jul 23, 2018
- 198
- 110
Email scraper on ScrapeBox if mentioned port 25 is blocked, directly infers that - scrape box is using SMTP protocol's EHLO -> RCP
O to verify the email address via whether it has sending capabilities. While this will not send an email to the email address, it might still be constituted as spam in certain firewall configurations that may lead to your server being taken offline. Try contacting the provider first if you want to be acertain of this matter.
The issue from such verification method will be that majority of cloud VPS and cheaper servers usually will block port 25 to prevent email spam. They only allow 587/465(SSL), which is why you can't conduct email verification properly.
Furthermore, as far as I know the majority of proxy providers will block ports related to email to avoid getting blacklisted into SpamHaus. You can get proxies that allow port 25 from awmproxy if I remember correctly, but those are not cheap.
The issue from such verification method will be that majority of cloud VPS and cheaper servers usually will block port 25 to prevent email spam. They only allow 587/465(SSL), which is why you can't conduct email verification properly.
Furthermore, as far as I know the majority of proxy providers will block ports related to email to avoid getting blacklisted into SpamHaus. You can get proxies that allow port 25 from awmproxy if I remember correctly, but those are not cheap.