Frequently Asked Questions
How does the address verification feature work?
This is a feature of Postfix. In a nutshell, postfix will attempt to verify the recipient addresses in incoming messages against the downstream MTA (Mail Server). You can read more about how this works here.(http://www.postfix.org/ADDRESS_VERIFICATION_README.html)I can login to the console, but not to the Webmin interface - What's wrong?
This could be due to the fact that Webmin doesn't like special characters in the password (Specfically @ ). Try resetting your password using different characters in the console. I'm afraid that I can't do much abou this one as I don't develop the Webmin software - I just bundle it in with ESVA...My mailserver won't validate any recipient addresses, so ESVA rejects all my mail - how do I fix this?
You can read more about how ESVA validates addresses here. (http://www.postfix.org/ADDRESS_VERIFICATION_README.html)You have two options:
- Configure your downstream mail server to allow this functionality
or
- Tell ESVA not to validate by editing the main.cf file:
-Find the line in main.cf ( https://youresvaserver/postfix/manual.cgi )
- Remove the reject_unverified_recipient parameter from smtpd_recipient_restrictions
- save the file
-restart mailscanner (from the commandline on the console or in an ssh session type service MailSacnner restart)
I want ESVA to check mail for multiple domains - Is this possible? How do I set this up?
Absolutely.This functionality is built into ESVA 1.6. See the Setup Guide for more information.
I'm seeing messages in /etc/log/maillog like "Sep 18 22:46:32 mail-gw postfix/smtpd[17404]: NOQUEUE: reject: RCPT from unknown[84.77.16.217]: 450 : Recipient address rejected: Greylisted..." - What does this mean???
Nothing - This is normal! Postgrey is working its magic by telling MailServers it doesn't trust yet to try sending the message again in 5 minutes, at which time postgrey will accept the message and autowhitelist (trust)
the sender-recipient-mailserver "triple". This simple trick kills over 99% of spam in my experience. Read more about postgrey at http://isg.ee.ethz.ch/tools/postgrey/
and more about greylisting at http://projects.puremagic.com/greylisting/. If you need to whitelist anyone, See the Setup Guide for more information.
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