add a fallback if no email-footer is available
add a fallback if no email-footer is available

eea/redmine_helpdesk,ekulos/redmine_helpdesk,jfqd/redmine_helpdesk,ekulos/redmine_helpdesk,orchitech/redmine_helpdesk,eea/redmine_helpdesk,eea/redmine_helpdesk,orchitech/redmine_helpdesk,jubicoy/redmine_helpdesk,VoronyukM/redmine_helpdesk,ekulos/redmine_helpdesk,jubicoy/redmine_helpdesk,VoronyukM/redmine_helpdesk,jfqd/redmine_helpdesk