> > The only way to deal with that is to set > smtp_accept_max_per_host = 1. > > Thank you. But it doesn't seem to fix anything, it just > takes longer because the other connections are delayed. But > the result is the same. $rcpt_count never gets above 1.
That's true. All it does is slow them down and stop them sending to more than one recipient at a time, some of which will fail and some won't (if they're carrying out a dictionary attack). It just gives you more time to notice what they're doing and block them before they manage to send you hundreds of spam emails. > > Now, why would yahoo only send one RCPT per connection when 4 > addresses to the same domain are on the same message? What > is the benefit of doing that -- aside from facilitating spam > from their addresses? > I've wondered this myself. There seems to be quite a few mailservers out there that do this. - Mark -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
