Sending large CLOB message using UTL_MAIL.SEND - oracle

Question

I'm using below code snippet in Oracle 12c procedure.
UTL_MAIL.SEND(SENDER => 'abc#x.com',
RECIPIENTS => 'xyz#x.com',
MIME_TYPE => 'text/html',
SUBJECT => SUBJECT,
MESSAGE => EMAIL_STRING);
EMAIL_STRING is of type CLOB It was working fine before. Now the email string length has been increased (became 62598 which is dynamic) and started giving below error.
Error report -
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "PROCEDURE_NAME", line 67
ORA-06512: at line 1
06502. 00000 - "PL/SQL: numeric or value error%s"
*Cause: An arithmetic, numeric, string, conversion, or constraint error
occurred. For example, this error occurs if an attempt is made to
assign the value NULL to a variable declared NOT NULL, or if an
attempt is made to assign an integer larger than 99 to a variable
declared NUMBER(2).
*Action: Change the data, how it is manipulated, or how it is declared so
that values do not violate constraints.
How to send large CLOB as message body using UTL_MAIL.SEND ?

Answer 1

As #Wernfried Domscheit commented, I followed how to export data from log table to email body in oracle and used below snippet in my procedure to call the newly created package.
MAILING.SendMail(
Subject => SUBJECT,
Message => EMAIL_STRING,
ToMail => VARCHAR_TABLE_TYPE('toEmailid1','toEmailid2'),
FromMail => 'fromEmailId',
FromName => 'fromName');