MailMate not sending changes to server

First check that all of the mailboxes in the account are online and fully synchronized. Look under SOURCES in the mailbox outline. A mailbox can be taken offline if there is some kind of persistent problem although it should only happen after a warning has been shown to the user.

If this doesn't help then we'll start debugging.

Hi Benny,

Thanks for the quick response. The mailbox/account is not offline.

I've tried a few things, including rebooting the server. As best I can tell, the issue only arises when I'm connected via a VPN.

If I had to guess, I'd say that MailMate doesn't like the increased latency. I don't have the same issue with other email clients connected via the same VPN, and when I connect directly (or via a faster VPN), I don't have the problem. I suppose the email clients on my phone are specifically designed to work with higher-latency connections.

Dean

So, I've been using Postbox alongside MailMate for the past few days to try and narrow down the source of the problem.

Postbox works flawlessly via VPN. This is likely due to its generous 100-second timeout.

I continue to have problems with MailMate when using the VPN, which all disappear when directly connected.

The conclusion I draw is that MailMate times out too soon for my connection. Is there any way I can adjust the timeout to something more generous?

— Dean

Thanks for analyzing the issue. There is, I believe, a working hidden preference to change the minimum timeout value. Try this and then relaunch MailMate:

defaults write com.freron.MailMate MmMinimumConnectionTimeout -integer 100

MailMate actually tries to adapt automatically, but apparently that does not work well in your case. Perhaps we can analyze that in more detail if the above solves your problem.

I followed your suggestion, and after a week's testing, everything is working perfectly.

Thanks for the excellent support!

— Dean