On my docker mail server, I experienced the following problem connecting to my IMAP server:
# Telnet authentication $ telnet 192.168.59.103 143 Trying 192.168.59.103... Connected to 192.168.59.103. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2011 Double Precision, Inc. See COPYING for distribution information. a1 LOGIN email@example.com mypassword * OK [ALERT] Filesystem notification initialization error -- contact your mail administrator (check for configuration errors with the FAM/Gamin library) a1 OK LOGIN Ok.
As you can see, the authentication succeeded but a alert message appears.
As you can also see, the error is "client side". Nothing appears on my server logs.
fam daemon on an Ubuntu Trusty docker image.
Use gamin instead of fam
This is what is said about gamin on the Ubuntu website:
libgamin0 Client library for the gamin file and directory monitoring system or libfam0 Client library to control the FAM daemon also a virtual package provided by libgamin0
I moved from
apt-get install gamin
But the error moved from client side to server side.
imapd: Failed to connect to socket /tmp/fam--
I read a lot of posts over the Internet and many problems have been resolved installing
So I supposed that I had another problem.
So, especially if you are a docker user, read the next part.
Use a "real" unix user
postfix configuration, I forced the ownership of my mail data like this:
# Mail directory virtual_mailbox_base = /var/mail virtual_mailbox_domains = /etc/postfix/vhost virtual_mailbox_maps = hash:/etc/postfix/vmailbox virtual_alias_maps = hash:/etc/postfix/virtual virtual_uid_maps = static:5000 virtual_gid_maps = static:5000
The "problem" is that I did not have a unix user with
Without a real user, the
gam_server daemon won't start.
I added a specific unix user with the appropriate uid and everything went OK, client and server side.
The short version, to summarize
If you experience one of these errors:
# Client Side, visible when trying to authenticate on the IMAP server using telnet Filesystem notification initialization error -- contact your mail administrator (check for configuration errors with the FAM/Gamin library)
# Server Side, usually in /var/log/mail.log imapd: Failed to connect to socket /tmp/fam--
Here is what you need to do:
- Verify that your files are owned by an existing / real unix user, otherwise,