Authentication lost within session

[Sami Ketola]

> On 17 Jan 2019, at 14.19, Marc Roos <M.Roos at f1-outsourcing.eu> wrote:
> 
> 
> Same ip, connection, session happens after a few seconds, all on local 
> test network.

Sorry I mistakenly overlooked at the ip:s. But anyway that is multiple connections and seems that PAM has some concurrency limit and refuses the third connection Thunderbird opens.

so you probably have pam_limits with maxlogins=2 enabled.

Sami