buenas tardes me pueden apoyar en decirme por que cuando mando un email a unas direcciones m esta marcado error .Este es el error
The original message was received at Wed, 5 Oct 2016 14:28:21 -0500 from [192.168.0.253] ----- The following addresses had permanent fatal errors ----- <administrac...@cyanmedica.com<mailto:administrac...@cyanmedica.com>> (reason: 554 bosimpinc12 bizsmtp Connection rejected. Reverse DNS for 189.240.35.147 does not exist.) <cesar.at...@cyanmedica.com<mailto:cesar.at...@cyanmedica.com>> (reason: 554 bosimpinc12 bizsmtp Connection rejected. Reverse DNS for 189.240.35.147 does not exist.) <servicio.clien...@cyanmedica.com<mailto:servicio.clien...@cyanmedica.com>> (reason: 554 bosimpinc12 bizsmtp Connection rejected. Reverse DNS for 189.240.35.147 does not exist.) ----- Transcript of session follows ----- ... while talking to mx.mydomain.com.: <<< 554 bosimpinc12 bizsmtp Connection rejected. Reverse DNS for 189.240.35.147 does not exist. 554 5.0.0 Service unavailable tengo centos 6.4 y uso sendmail gracias _______________________________________________ CentOS-es mailing list CentOS-es@centos.org https://lists.centos.org/mailman/listinfo/centos-es
