Solution : https://service.sap.com/sap/support/notes/860515 (SAP Service marketplace login required)
Key words :
displays html source code, changed e-mail text, cl_crm_email_utility/cl_crm_email_utility_base classes ignores, e-mail text, html e-mail, e-mail texts, interaction center webclient, quoted printable coding, 0 service industries add-, cl_crm_email_utility class
Related Notes :
| 827133 | CRM E-Mail: MIME header not parsed correctly |