Hi, On Wed, Jan 22, Brent Clark wrote: > We have a project where we are trying to load balance to our outbound > Spamexperts Antispam relays / servers. > > We hit a snag where our clients servers are getting 'Too many concurrent > SMTP connections from this IP address'. As a result the mail queue is > building up on the servers.
What generates this error (the antispam servers ?) Your antispam servers probably see all connections coming from haproxy ip-address (and not the clients address). > After reverting our change, the problem went away. > > Our setup is: > (CLIENT SERVERS INDC) ---> 587 (HAPROXY) ---> (ANTISPAM) ---> (INTERNET) Do you control the antispam servers and do the antispam servers support for example proxy-protocol (postfix, exim etc) ? (https://cbonte.github.io/haproxy-dconv/2.0/configuration.html#5.2-send-proxy) -Jarno -- Jarno Huuskonen
