Suffix_text_attr MTA option
Direct LDAP MTA options:
suffix_text_attr (HTML attribute list)
New in 188.8.131.52. A better-looking result may be produced by associating suffix text inserted into text/html message parts with a particular set of HTML attributes. The
suffix_text_attr MTA option may be used to do this. If specified, the option causes any suffix material that is inserted into text/html parts to be enclosed in a
<div attrs"> element, where "attrs" is the value of the option.
The default for this option is the empty string, which suppresses the insertion of any additional elements.