Sun, 19 Feb 2006
When I upgraded my mail server from Woody to Sarge, Postman, my webmail client, stopped
working. When trying to log in, I got the following error:
Error: Certificate failure for mail.xerus.org: self signed certificate: /C=US/ST=California/L=Los Angeles/O=Xerus/CN=mail.xerus.org
It turns out that the newer version of C-client, the library that postman uses
for IMAP, automatically tries to verify the certificate, even if you have
postman configured to connect to the non-SSL port; I guess it calls STARTTLS.
Since I'm only using a self-signed certificate, I get the error above.
The solution is to configure postman to not verify the certificate using the
novalidate-cert switch in /etc/postman/interdaemon.cfg.
[mail.xerus.org]
imapserver = mail.xerus.org/novalidate-cert
imapport = 143
smtpserver = localhost
;for SMTP authentication. 0=No,1=Must,2=Try
authsmtp = 0
maildomain = xerus.org
mailboxprefix =
remotepath = ~/mail/
deniedservices =
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