Just an FYI.
If your client is using Ubuntu 18.04 there is an issue with the network
stopping on the local pc.
To test get your client to use the GUI network manager and disconnect wait
a few seconds then reconnect.
We are chasing a similar issue now for a client.
To see if this is the issue either try pinging out of the network or
loading a web page.

best wishes
  Tony White

On 03/08/18 01:16, Eric Broch wrote:

Can you check if the password for the account is saved in Thunderbird on the Ubuntu desktop?

In Thunderbird go to Tools->Options->Security->Saved Passwords


On 8/2/2018 4:52 AM, ChandranManikandan wrote:
Hi Friends,

One of our user getting disconnected frequently from thunderbird (Asking passwords) and webmail also not opening.

After restart the dovecot service it will working again.
But the password is asking frequently.
I have restarted the dovecot service frequently.

This problem for only one user rest of other users not an issue.

I couldn't trace the logs in /var/log/maillog and /var/log/dovecot.log

Anyone face the same issue .

Could anyone help me to resolve this issue.

Note: User is using Ubuntu Desktop with Thunderbird.

--
*/Thanks & Best Regards,
Manikandan.C
/*

--
Eric Broch
White Horse Technical Consulting (WHTC)

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