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Last weekend the wireless on my Linux Mint box stopped working. Instead of fighting wireless driver issues all evening I grabbed a spare wifi range extender with an ethernet port and plugged my desktop into it to get back online. Nothing else changed, yet ever since Thunderbird won't connect to the IMAP server. I downloaded Claws Mail just to make sure it wasn't a Thunderbird issue, and Claws gets a Port 993 connection refused error too. I can ping mail.webfaction.com and it responds.

Error message: Can't connect to IMAP4 server: mail.webfaction.com:993

I'm stumped. Any ideas?

asked 26 Oct, 00:29

chrisod's gravatar image

chrisod
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accept rate: 0%


Try running an MTR report to verify it isn't packet loss or something else.

mtr mail.webfaction.com

Try using telnet to connect on port 25 and 993 to see if that works,

$ telnet
telnet> open mail.webfaction.com 25
Trying 195.238.175.25...
Connected to mail.webfaction.com.
Escape character is '^]'.
220 mailbox17.webfaction.com ESMTP Postfix


~$ telnet
telnet> open mail.webfaction.com 993
Trying 185.20.49.159...
Connected to mail.webfaction.com.
Escape character is '^]'.
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answered 26 Oct, 04:50

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johns ♦♦
5.0k29
accept rate: 23%

cod@cod-OptiPlex-7010 ~ $ mtr mail.webfaction.com
Failed to resolve host: Name or service not known
cod@cod-OptiPlex-7010 ~ $ telnet
telnet> open mail.webfaction.com 25
telnet: could not resolve mail.webfaction.com/25: Name or service not known

Yet pinging mail.webfaction.com works fine, so my box can get to the IMAP server.

Traceroute also fails to the mailserver, but works to webfaction.com

Tried flushing the DNS cache too. Still can't connect to the mail server from a mail client.

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answered 27 Oct, 00:24

chrisod's gravatar image

chrisod
4115
accept rate: 0%

Please open a support ticket to let us know your public-facing IP address and resolving DNS server IPs, and we'll assist you from there.

(27 Oct, 00:30) seanf ♦♦ seanf's gravatar image

I changed the DNS set up on my box from DHCP to DHCP (Addresses Only) and manually specified Google's DNS servers, which is what Thunderbird should be getting from my router. After a reboot it's working. Don't know why the wifi extender is blocking Thunderbird from DNS, but it's working now.

Thanks for the help.

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answered 27 Oct, 00:55

chrisod's gravatar image

chrisod
4115
accept rate: 0%

You're very welcome!

(27 Oct, 00:57) seanf ♦♦ seanf's gravatar image
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question asked: 26 Oct, 00:29

question was seen: 215 times

last updated: 27 Oct, 00:57

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