text_combined: martin schmitt schmitt systems gicscsyde sven juergensen kielnet schrieb problem customerowned zombiehosts bombarding mailservers waves spam causing insomnia admins every permitted fire towards port 25 using everything got course im temporarily prohibiting send anything port 25 get unblocked suggesting systems uncompromised many times pop thats still details far sounds much like spam like backscatter id interested seeing example messages httpwwwpostfixorgbackscatter_readmehtml martin martin schmitt schmitt systemberatung httpwwwscsyde de 35415 pohlheim gießener str 18 de 65307 bad schwalbach bräunchesberg 9 linuxunix internet email infrastructure antispamantivirus goes must come ask system administrator fri 08 aug 2008 060128 0100 rfcignorant