sendmail.cf and smart relay host authentication

[awingnut]

My ISP now requires that I authenticate (simple username and password) to send mail. Can someone point me to a HOWTO for setting up sendmail.cf to authenticate to a smart relay SMTP host? TIA.

 

[nawlej]

Theres a parameter in sendmail.cf "DefaultAuthInfo" (or confDEF_AUTH_INFO) that tells sendmail where your smtp authorization stuff is held. The authorization file should be readable to root only (chmod 400, chown root:root) and should have the format:

admin
admin
password
smtp.domain

The auth info is usually kept in /etc/mail/default-auth-info

Hope this helps.

___________________________________
[morse]--... ...--[/morse], Eric.

 

[awingnut]

Thanks for the reply and I'm not sure if it helped or not. I am getting an error now that I don't understand. The mail log is telling me I have a DNS: Data format error. I'm not running DNS just resolver. The mail itself is bouncing and it is giving me a fatal error. It is saying hostname.dap.localnet does not exist. This is the default host name since I do not have a registered domain. (I'm DSL connected). While I agree it does not exist as far as any DNS is concerned, I question why it matters since I supposedly have now authenticated (although there is nothing in the log to confirm that). Is there a masquerading parameter that I need to set?

 

[nawlej]

im not sure of a masquerading parameter, but I think DNS is involved in the mix. Me, personally, I dont use sendmail for simple SMTP exchanges....I would look into postfix, its much much easier to configure.

___________________________________
[morse]--... ...--[/morse], Eric.