Customize the Email alert messages F5 - Subject

I am using 13.0 versions and My research indicate that we can append the Subject in the body of the email . body="subject=test/n fsafsfsafsaffaf" IS this the only way. ? Can this be customized like this?

did you test and it worked?

i do not think it works because there is newline between subject and body i.e. subject in user_alert.conf is not being recognized.

e.g.

// config

[root@ve13a:Active:In Sync] config  cat user_alert.conf
alert BIGIP_MCPD_MCPDERR_POOL_MEMBER_MON_STATUS {
  email toaddress=
  fromaddress="ve13a@f5.com"
  body="subject=test\nThe test of this Solution worked!"
}

// tcpdump

220  ESMTP
HELO ve13a.acme.local
250 
MAIL FROM:
250 sender  ok
RCPT TO:
250 recipient  ok
DATA
354 go ahead
Received: by ve13a.acme.local (sSMTP sendmail emulation); Wed, 27 Dec 2017 08:28:18 +0800
Date: Wed, 27 Dec 2017 08:28:18 +0800
From: ve13a@f5.com
To: 
Subject: 01070638:5: Pool /Common/foo member /Common/200.200.200.101:80 monitor status down. [ /Common/fake: down; last error:  ]  [ was unchecked for 0hr:4mins:47sec ]

subject=test\nThe test of this Solution worked!
.
250 ok:  Message 30998457 accepted
QUIT
221 

// mail client

-----Original Message-----
From: ve13a@f5.com [mailto:ve13a@f5.com] 
Sent: Wednesday, December 27, 2017 8:28 AM
To: 
Subject: 01070638:5: Pool /Common/foo member /Common/200.200.200.101:80 monitor status down. [ /Common/fake: down; last error: ] [ was unchecked for 0hr:4mins:47sec ]

subject=test\nThe test of this Solution worked!

there is rfe which not implemented yet.

ID273716 RFE: allow user customizable subject line for alertd e-mails