Set up your mail server for sending
Contents
Now you do not want anyone to be able to use your mail server as spam-catapult. So you need sender verification in your postfix service.
Make sure your authentication service is running:
/etc/init.d/saslauthd status
has to deliver
running
In /etc/postfix/main.cf, set
smtp_sasl_auth_enable = yes smtpd_sasl_auth_enable = yes
Restart Postfix
/etc/init.d/postfix restart
Start kmail, setup localhost as incoming and outgoing mail server. In kmail, change the sending account's authentication method to "LOGIN". Send a mail to testuser@localhost.
TroubleShooting
Authentication not enabled
- Symptom
You get
Sending failed: Your SMTP server does not support authentication. The server responded: "5.5.1 Error: authentication not enabled"
- Solution
You will need to modify /etc/postfix/main.cf, set
smtp_sasl_auth_enable = yes smtpd_sasl_auth_enable = yes
and restart postfix:
/etc/init.d/postfix restart
generic failure
- Symptom
You get
Sending failed. Most likely the password is wrong. The server responded: "5.7.8 Error: authentication failed: generic failure"
- Solution
You need to make sure your authentication service has been started:
/etc/init.d/saslauthd status
has to deliver
running
no authentication mechanism available
- Symptom
You get
Sending failed: Your SMTP server does not support The server responded: "5.7.8 Error: authentication failed: no mechanism available"
- Reson
You may have
- plain
- digest-md5
- cram-md5
as authentication method in kmail.
- Solution
Change this to Login.
no worthy mechanisms found
- Symptom
You get
Sending failed: An error occurred during authentication: SASL(-4):no mechanism available: No worthy mechs found
- Reason
You may have
- GSSAPI
as authentication method in kmail.
- Solution
Change this to Login.
no mail is sent
- Symptom
Nothing happens and no mail is sent
- Reason
You may have
- NTLM
as authentication method in kmail.
- Solution
Change this to Login.
smtpd_recipient_restrictions = permit_mynetworks,
permit_sasl_authenticated,
reject_unauth_destination,
check_policy_service inet:127.0.0.1:60000
