good tutorial. why ban on it.
Nearly no one (data centers, ISPs, etc.) want to deal with the spammers who would burn their IPs.
Here are the examples from these spammers:
- I need SMTP IPs for "checking email addresses" (yeah right)
- SOCKS with SMTP
- Reverse domain with IPs - with DKIM, etc. - needs guaranteed inboxing (won't work)
- Needs 100 IPs..rotating IPs for my mailing needs.
- I want cheap IPs for my mailing needs. (try $10-25 per IP per month due to heavy monitoring)
- All of my email addresses are opt-ins. (oh please..we heard of that)
- Outside of USA or certain Euro countries
- Refuse to disclose who they are
- Refuse to provide their real email address with real domain name (not web-based email such as g-mail, yahooo, etc.)
- Etc. Etc.
Reason: We don't want to see our IPs being on blacklist (spamhaus, etc.). Very expensive to deal with it.
Bottom line: If you treat IPs as your best friends and keep it safe for long-term, we are interested. Otherwise...good luck in finding the providers.