Steps to enable Mailing from Database
1.
sqlplus ‘/ as sysdba’
 
2. 
SQL>@$ORACLE_HOME/rdbms/admin/utlmail.sql
 
3. 
SQL>@$ORACLE_HOME/rdbms/admin/prvtmail.plb
4. Set smtp_server information in init.ora or spfile.ora
SQL>alter system set smtp_out_server = "******";
 
 
How to send an email
1,
sqlplus ‘/ as sysdba’
 
2,
execute  UTL_MAIL.SEND(​​'​​***@***.**','***@***.**','','','Subject','Content');
 
if want to send an HTML Mail,then:
execute  UTL_MAIL.SEND('***@***.**','***@***.**','','','Subject','Content','text/html; charset=GB2312',3);
 
 
How to grant execute permission to Other Users
 
1,
sqlplus ‘/ as sysdba’
 
2,
 grant execute on sys.UTL_MAIL to whs;
 
3,Login as "whs",execute the same SQL with step2 on How to send an email Paragraph.