ORA-24033: no recipients for message
Cause: An enqueue was performed on a queue that has been set up for multiple dequeuers but there were neither explicit recipients specified in the call nor were any queue subscribers determined to be recipients for this message.
Action: Either pass a list of recipients in the enqueue call or add subscribers to the queue for receiving this message.
？
ORA-24033: no recipients for message是Oracle的数据库的一条错误信息，表示没有收件人收取由 UTL_MAIL 包发出的电子邮件。
1. 检查数据库中使用的SMTP服务器配置是否正确。
2. 检查UTL_MAIL包里每封邮件是否正确填写了收件人。
3. 如果存在多个收件人，检查每个收件人之间是否用分号隔开。
4. 检查当前发送端与SMTP服务器之间的通信端口是否正常。