On 22/02/16 21:18, Glyph Lefkowitz wrote:
On Feb 22, 2016, at 09:26, Phil Mayers <p.mayers@imperial.ac.uk> wrote:
On 20/02/16 09:33, Glyph Lefkowitz wrote:
I assume that they subscribed by accident (spammers seem to periodically attempt to mass-subscribe people using our listserv, I have no idea why, and some of them click the "yes subscribe me" link for some reason).
FWIW, our local mailman install is patched to require a captcha (and to disable email-based subscribe) to solve this exact problem.
Is this simple to do?
It was pretty easy. I originally followed this recipe: https://www.dragonsreach.it/2014/05/03/adding-recaptcha-support-to-mailman/ However, I had to tweak it slightly - some of the mailman "HTML" (I use that term loosely) had weird tag nesting that broke the captcha form submission on newer browsers (some monstrosity like <table><tr><td><form>...</table></form>) I'll sling you the diff against 2.1.12 that we use off-list, feel free to use or modify as appropriate.