Re: [Evolution] 3.16.3: Failed to refresh folder INBOX,

2015-06-23 Thread Milan Crha 
On Mon, 2015-06-22 at 19:11 -0400, Eugene Kanter wrote:
 Move IMAP server to another address, change DNS record

Hi,
these are low-level things users usually cannot do, right? I mean, you
can change a local network, like unplug the wire and connect using
WiFi, but the server address will stay the same, including the DNS
record, no?

 Evolution indefinitely keeps trying previous IP address,

Right. There is done some caching of the route, not directly in
evolution, but in GIO streams/gnutls/..., which evolution relies on. it
also relies on the network change notifications, which are received
through GNetworkMonitor. There can be an issue in the IMAPx code, how
it processes the network change notifications.

 displaying an error Connection timed out.

What happens next? Does the IMAP account reconnect properly after this
timeout error when you try to do anything else with it (or the same
action with it)?

I see a very similar behaviour with the Firefox, when the network
changes, it only may have set slightly shorter timeouts.
Bye,
Milan

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Re: [Evolution] 3.16.3: Failed to refresh folder INBOX,

2015-06-23 Thread Zan Lynx 
On 06/23/2015 02:24 AM, Pete Biggs wrote:
 Don't get confused by using utilities such as nslookup - they perform
 the DNS queries themselves so by-pass the cache.

Only if you tell them to do so. By default dig and nslookup do the query
to the same resolver IP that the system libraries use.

If there is a cache in use, it is inside the Evolution libraries. If a
command-line ping, dig, or host command returns the new IP for a DNS
name, Evolution should be using that as well.

If it does not, that would be a bug. Because IP addresses do get changed
now and then, and users with laptops rarely close email programs when
you can just leave programs open and suspend/resume the machine.
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