My situation:

- High volume sites, using HONEYPOT + HIDDEN CAPTCHA + EMAIL_VERIFY leads to perfect protection against bots.
- Some bots are able to get through HONEYPOT + HIDDEN CAPTCHA, in those cases EMAIL_VERIFY is "the last stand".
- These bots are using similar e-mail address patterns, but constantly changing source IP.

Results:

- The e-mails servers start throttling and/or blocking SMTP and/or greylisting connections from my server.

Solution:

- Cache e-mail verification results for address proven to be "bad"

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Comments

david_garcia’s picture

Status: Needs work » Needs review
FileSize
2.09 KB
david_garcia’s picture

FileSize
2.09 KB

Improved watchdog message for cached responses.

oadaeh’s picture

Version: 7.x-1.x-dev » 7.x-2.x-dev

Moving to the new current development branch.

oadaeh’s picture

Status: Needs review » Closed (duplicate)

I believe this was included in #2102323: Greylist + Multiline responses + Timeouts, so I'm closing as a duplicate.