Hello,
i have the problem on customer side and in my lab that my utm is detected as open Relay? what can i do to stop this?
Check by MXTOOLBOX
NOK - SMTP Server Disconnected May be an open relay. More Info
OK - SMTP Banner Check OK - XX.xx.***x resolves to webmail.mydomain.de
OK - SMTP Reverse DNS Mismatch OK - Reverse DNS matches SMTP Banner
OK - SMTP TLS OK - Supports TLS.
Connecting to xx.xx.xx.xx
220 webmail.MyDomain.de ESMTP ready. [1342 ms]
EHLO MXTB-PWS3.mxtoolbox.com
250-webmail.mydomain.de Hello mxtb-pws3.mxtoolbox.com [64.20.227.133]
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP [811 ms]
MAIL FROM:
250 OK [811 ms]
RCPT TO:
SendSMTPCommand: You hung up on us after we connected. Please whitelist us. (connection lost)
MXTB-PWS3v2 4789ms
This thread was automatically locked due to age.