On 2022-03-07 at 08:04:25 UTC-0500 (Mon, 7 Mar 2022 13:04:25 +0000)
Henry Seiden <mailmate@lists.freron.com>
is rumored to have said:
Hello,
Just letting you know of continuing issue with Accounts staying on
line, in particular Yahoo! Coming back with an A1 connection error.
This is mostly a problem with Yahoo because of their low simultaneous
connection limit but it is theoretically possible anywhere under the
wrong conditions.
I found that do duplicate the issue regularly in this version, and I
think later revisions as well of MailMate here are the steps:
1. Starting with a working, non-failing condition of MailMate, select
a different connection method. For instance without leaving my house,
I chose to go from a LAN connection (plugged in LAN cable) to wireless
connection (unplug the LAN cable and turn on the Wireless on the same
machine).
2. MailMate was left open on the desktop.
3. Immediately (within 30 seconds of changing connection methods the
warning popped up that the connection to Yahoo! Server had failed due
to the error and a choice of try later or take the account off-line
was required.
This is almost certainly unavoidable with certain network architectures.
It is likely to be generally impossible to sustain any TCP sessions
across that network change unless you've designed the network to not
break sessions. To do that, you need to make whatever is doing your WAN
link (and presumably NAT) see your machine on the new link as the same
machine that just vanished on the wire. If you are using a single
machine (e.g. SOHO router/WAP) for wireless and wired connections, it
will never see a new wireless client as the owner of the NAT mappings
that it has for the wired connection.
4. Disconnecting the account (taking it off line) got rid of the
warning.
5. Leaving it off for over 30 seconds, then turning it back to online
did NOT solve the problem. However, closing MailMate app for about a
minute and then restarting did solve the problem permanently, until
the next move to another wired or wireless connection.
That is 100% consistent with your router discarding the old NAT mappin
gs before they've closed properly, and Yahoo taking a formally correct
period to time out the session(s) using your simultaneous connection
slots.
I've simply given up on using Yahoo for always-on IMAP: I check mail
there manually only, not on a schedule, so MM doesn't always have a
connection open. Obviously that's not an option if your Yahoo account is
for serious use. (Mine is purely a testing tool.)
--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire
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