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AysadKozanoglu/mailserver_openRelay_check_telnet.sh

Last active October 27, 2020 10:53
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mailserver openrelay check manuelly over telnet
Raw
mailserver_openRelay_check_telnet.sh
```
telnet mail.MailserverDomain.com 25
#Trying 76.33.23.xxx...
#Connected to mail.MailserverDomain.com.
#Escape character is '^]'.
#220 mail.MailserverDomain.com ESMTP Postfix
helo GIVEANYEXISTINGDOMAIN.COM
#250 mail.MailserverDomain.com
mail from: myEmail@example.com
#250 2.1.0 Ok
rcpt to: EmailToReceiver@example.com
#454 4.7.1 <EmailToReceiver@example.com>: Relay access denied
```
Relay access denied -> NOT A OPENRLEAY-> Mailserver Restricted
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