Hi,
We are facing a weird problem. We have created a alert category, and have defined long text as below :
Dear Reader,
Please find the below details of the error occured in SAP PI system:
SENDER SYSTEM: &SENDER&
RECEIVER: &RECEIVER&
MESSAGEID: &MESSAGEID&
Please go to the transaction SXMB_MONI_BPM to see the error message details.
This message was automatically generated. Sent by SAP PI system.
PLEASE DO NOT REPLY TO THIS EMAIL.
Regards,
SUPPORT TEAM
But in the alert mail we are getting junk characters as below :
Content-Type: TEXT/PLAIN; Charset="ISO-8859-1"
Content-Transfer-Encoding: QUOTED-PRINTABLE
Dear Reader,
Please find the below details of the error occured in SAP PI system:
SENDER SYSTEM: TestSender
RECEIVER: ErrorNotify
MES SAGEID: 9EFB9093-F36A-11E3-CA75-0000006D18B6
Please go to the transactio=
n SXMB_MONI_BPM to see the error message details.
This messa ge was automatically generated. Sent by SAP PI system.
PLEASE DO NOT REPLY TO THIS EMAIL.
Regards,
SUPPORT TEAM
we are really confused where we have gone wrong 
Thanks in advance,
Arun