undelivered gerrit notifications

All, I received 3 emails containing formation about my comments and: ********************************************** ** THIS IS A WARNING MESSAGE ONLY ** ** YOU DO NOT NEED TO RESEND YOUR MESSAGE ** ********************************************** The original message was received at Thu, 22 Oct 2015 02:47:50 -0400 from gerrit.ovirt.org [127.0.0.1] ----- Transcript of session follows ----- <automation@ovirt.org>... Deferred Warning: message still undelivered after 4 hours Will keep trying until message is 5 days old Final-Recipient: RFC822; automation(a)ovirt.org Action: delayed Status: 4.2.0 Last-Attempt-Date: Thu, 22 Oct 2015 06:58:26 -0400 Will-Retry-Until: Tue, 27 Oct 2015 02:47:50 -0400 Can someone take a look at it? Thanks, Piotr