Question regarding sendmail AUTH / Relaying denied
I´m using ISPConfig 2.2.10 with Centos 4.4 and sendmail 8.13.1. I´ve been trying to configure SMTP auth so any user that would like to use the server for sending mails anywhere should authenticate first with its POP3 login.
I´ve followed the tutorials, and the suggestions from the forum, but I´m stuck where the user can only send mail to local accounts and when trying to send to another domain (i.e. gmail, hotmail) it gets the following error:
reject=550 5.7.1 <firstname.lastname@example.org>... Relaying denied, IP name lookup failed [192.168.1.50]
Of course if I add
to /etc/mail/access, i get no message and then the user can send. But my question is, isn't the SMTP auth option precisely a way to avoid entering each IP address to the /etc/mail/access file so any user can send mails as long as the user authenticates? Or is it that even if I define SMTP auth I should include in /etc/mail/access all the IPs from the users that are going to use the server?
By the way, when I do:
testsaslauthd -u web1_user -p password
I get "OK Success" so it seems the SASL config is working. And also, if I do
telnet localhost 25
I can see 250 AUTH LOGIN PLAIN, so it seems the config is also in place.
Thank you and regards,
Did you enable "My outgoing server (SMTP) requites authentication" in your email client?
Yes, I enabled that option at the e-mail client.
What's in /etc/postfix/main.cf?
The mail server is using a public IP address. The IP that the log shows is the address of the PC where the email is sent using the mail server. If I use a public IP address on the PC, I get the same error, but with different IP:
reject=550 5.7.1 <email@example.com>... Relaying denied, IP name lookup failed [public_ip_of_PC_that_sends_the_email]
Is your public IP blacklisted? http://www.mxtoolbox.com/blacklists.aspx
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