fixed auth_proxy socket error (#1894)
fixed auth_proxy socket error (#1894)

https://github.com/haraka/Haraka/issues/1893
Synchro/Haraka,msimerson/Haraka,haraka/Haraka,Synchro/Haraka,haraka/Haraka,msimerson/Haraka,msimerson/Haraka,Synchro/Haraka,Synchro/Haraka,smfreegard/Haraka,smfreegard/Haraka,haraka/Haraka,haraka/Haraka,smfreegard/Haraka,msimerson/Haraka,smfreegard/Haraka