Thank you Adrian,
Finnaly I have received a reply from the mail admin (outsourced) and their reply was:
Open Relay function for an IP can't be added.
So, how can I add in my code smtp auth?
Apex 4.0 with 11Gee
Edited by: Florin on Dec 20, 2012 11:15 AM
so just to be sure, if I'm upgrading to 4.2 I will be able to use utl_mail with smpt authentication defined in Apex (manage instance)
form the documentation seems so..
Anyway Adrian, I want to wish you Happy Holidays and many thanks for all your good advices.
I believe so. I have instances on 4.1 and 4.2 and they are all configured to use SMTP credentials for sending mails using APEX_MAIL. But before you upgrade your current instance, I strongly recommend creating a separate instance for testing your 4.0 application in the new environment. I would do that with VMs that I could quite easily blow away.
Thanks for your well wishes. Happy Holidays and have a great new year ahead!