Hi,
Thanks for your help :)
I tried the code shared by you. It works fine when i test it using TELNET. But when i send an email from the Exchange server, the connection resets in the DATA section and the mail is not delivered to the back end server. The moment i remove the iRule for F5, all emails in the queue start flowing to the backend server. Please find below the logs printed during one such transaction. Thanks
May 7 13:59:39 LABPMCUSEXTLB01 info tmm[14744]: Rule /Common/LAB_SMTP_Enrichment_v2 : Old payload: EHLO AUT22EH000LABWI.domain.com
May 7 13:59:39 LABPMCUSEXTLB01 info tmm[14744]: Rule /Common/LAB_SMTP_Enrichment_v2 : Old payload: MAIL FROM:
May 7 13:59:39 LABPMCUSEXTLB01 info tmm[14744]: Rule /Common/LAB_SMTP_Enrichment_v2 : Old payload: RCPT TO:
May 7 13:59:39 LABPMCUSEXTLB01 info tmm[14744]: Rule /Common/LAB_SMTP_Enrichment_v2 : Old payload: DATA
May 7 13:59:39 LABPMCUSEXTLB01 info tmm[14744]: Rule /Common/LAB_SMTP_Enrichment_v2 : Old payload: DATA RSET