I spent the last few days trying to setup Postfix with SASLDB to send emails from my application over SMTP on Ubuntu Server 15.04. I searched, read and tested a lot about it but I can't get it to work. The Postfix and the mail servers are new to me so I hope someone can help me.
The last thing I tried is the following:
Got a clean install of Ubuntu Server 15.04 x64.
Run this script to install and configure Postfix, SASL AUTH: https://gist.github.com/richarddong/2634350
Fix SASLAUTHD to work with chrooted Postfix by this (3. and 4. paragraphs): https://github.com/webmin/webmin/issues/58#issuecomment-22985720
To fix connect() : No such file or directory error by the testsaslauthd command.
I created an user with
saslpasswd2 -c -u example.com username.
Verified it successfully with
sasldblistusers2, then tested it with:
testsaslauthd -u firstname.lastname@example.org -p password
testsaslauthd -u username -p password -r example.com
testsaslauthd -u email@example.com -p password -s smtp
testsaslauthd -u username -p password -r example.com -s smtp
testsaslauthd -u username -p password
But all of these returned with: 0: NO "authentication failed".
It accepted only the root user and password, like
testsaslauthd -u root -p password.
I checked the configuration and found out it's not using the SASLDB, so I followed this: https://serverfault.com/a/547851/317421
After the SASL, Postfix configuration the results were the same as I wrote above.
I tried the root user with
telnet localhost 25, connected, then
AUTH PLAIN base64string, where base64string generated by:
perl -MMIME::Base64 -e 'print encode_base64("\000root\000password");'
But returned with
535 5.7.8 Error: authentication failed: generic failure.
This is where I'm now.
Of course I restarted Postfix and SASLAUTHD between these steps.
I tried rebooting the system too but nothing changed.
If someone would be so kind and help me to setup this or got a script for this that would be great!