Error Log OTRS-otrs.Console.pl-Maint::Email::MailQueue-59

[maro584]

Hello everybody,

I have cofigure a proper accounts for SMTP protocol and also for IMAP, but I have receiving in System Log following error:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
OTRS-otrs.Console.pl-Maint::Email::MailQueue-59

There was an error executing Execute() in Kernel::System::Console::Command::Maint::Email::MailQueue: Net::SMTP>>> Net::SMTP(2.31)
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Also I do not know if it is related to that, but I am also receivingon my mail box a lot of mails:

OTRS Scheduler Daemon Cron: MailQueueSend

Which I do not want to receive. Any help guys?