I am running a recent clean install of 6.01-1 with:
server only mode (behind a Smoothwall firewall)
multi-drop e-mail retrieval mode
ozehosting (Australia) external mail server
bigpond ISP (ADSL)
I IMAP to the e-smith box from the local network, and the e-smith box downloads mail from ozehosting (POP).
This system has worked flawlessly for 12 months until last week. I can now no longer receive or send e-mails, with the following message from the mail log file:
CNAME_lookup_failed_temporarily._(#4.4.3)
I can retrieve and send mail by using a browser to ozehosting webmail site.
I have no problems pinging my external mail server, so dns generlly seems ok.
A search of the contribs forums suggested updating tinydns (I assume this refers to e-smith-tinydns).
I did this (to e-smith-tinydns-0.5.0-07), but this made no difference.
I suspect I need to apply some other updates.
Can anyone help?
Thanks