I know this is basically a spam tool.
I think to know that you can query some info from a mailserver to test if an address exists.
I would like to find hidden addresses of some companies, for example I want to test if info@companyname.com exists.
Anyone know how to do that?
Update
I learned quite a bit
- Mailserver block the requests that are used to get a list of inboxes (“accounts”)
- many servers will block mailservers that are not on an allowlist
- many servers will block servers, if mails were sent to nonexistent addresses a couple of times
- the message “recipient not known” will not appear often, as servers may “black hole” a senders mail and cut off the connection without sending the status message back
I mean there is always the option to just send emails with an image link that auto loads and detect if someone loads it.
Interesting idea! But if servers block me after sending x mails to nonexistent inboxes, this doesnt help.
Well now its simply a matter of how many email servers can u get emailing on your behalf. U can buy a list of 300 google accounts for about $3 (general email:pass lists are far cheaper but lower success rate) add a proxy network and a python script and u can bot em all. Use ai and url shortener to make ur email content harder to filter. Obviously this is hypothetical and i do not condone such activities.