Hi Christian,

As far as I can see, this is as you say a warning, instead of an error, apparently you have the CPAN module 'Net::POP3’ that is incompatible with 'Net::SSLGlue’ for secure POP3 connections, as you can see from the mentioned line:

https://github.com/noxxi/p5-net-sslglue/blob/master/lib/Net/SSLGlue/POP3.pm

my $DONT;
BEGIN {
if (defined &Net::POP3::starttls) {
warn "using SSL support of Net::POP3 $Net::POP3::VERSION instead of SSLGlue";
$DONT = 1;
goto DONE;
}

If the Net::SSLGlue::POP3 detects Net::POP3::starttls is deactivates itself (‘$DONT =1;’) as it overwrites some Net::POP3 functions.

As a workaround, please check if is feasible to uninstall Net::POP3 in your system.

((enjoy))

Carlos Rodríguez




On Oct 10, 2016, at 8:50 AM, Christian Deligant <christian@deligant.net> wrote:

Hello,

Since I updated to otrs 5 I have the log entry every 10 minutes

There was an error executing Execute() in Kernel::System::Console::Command::Maint::PostMaster::MailAccountFetch: [Mon Oct 10 14:10:12 2016] otrs.Daemon.pl: using SSL support of Net::POP3 3.05 instead of SSLGlue at /usr/share/perl5/Net/SSLGlue/POP3.pm line 12.


I googled and found out that probably it is not an error but a notice.
Nonetheless, I would like to keep the log clean: how to avoid this line?

About the system:
Ubuntu 16.04.01 LTS
It is the only error in the log
All the accounts fetched are on POP3TLS from a server with self-signed certificate.

Thank you for your help
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