In message <51fff9c5.9070...@megan.vbhcs.org>, Noel Jones <njo...@megan.vbhcs.org> wrote:
>No. Here, near-zero legit clients use bracketed HELO. Looks as if >I've whitelisted 2 clients in the last ~5 years (I see one of them >has fixed their HELO sometime since then). That's close enough to >zero for me. I agree. >My solution is to reject everyone that has a bracketed IP in the >HELO, using a simple check_helo_access pcre map. I don't care if a >spambot is RFC compliant, I still don't want their mail. We appear to be in violent agreement. >I see zero value in testing to see if the HELO IP is forged, since >using any IP seems to be a very strong spambot indicator. OK. Works for me! I just wish that it wasn't necessary to have to run an external PCRE to catch it, and that the reject_non_fqdn_helo_hostname verb actually did what it's name intutively implies, and what the documentation says it does. [A.B.C.D] is distinctly _not_ an FQDN. Regards, rfg