After each send e-maila I get error message like:

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

justyna@xxxxxxx.xxx
local delivery failed

The following text was generated during the delivery attempt:

------ xxx@xxx.com ------

Time::HiRes object version 1.65 does not match $Time::HiRes::XS_VERSION 1.72.

but e-mail go to the reciepent without problems... WTF ?