Thanks for your quick responses! As our transfer is a bit complex than explained (users still want to keep messages in outlook, yes they do like a parallel work at the moment), I will try the Florian solution. So if I understand right we have to move the comments and place 3 or 5 instead the 10 ... Do you know if the fact that changing that parameter can interfer with other cron jobs ? Any side effects? Many thanks World Intellectual Property Organization Disclaimer: This electronic message may contain privileged, confidential and copyright protected information. If you have received this e-mail by mistake, please immediately notify the sender and delete this e-mail and all its attachments. Please ensure all e-mail attachments are scanned for viruses prior to opening or using.