libgmime-2.6-0 2.6.23+dfsg1-2 (amd64 binary) in ubuntu bionic

 GMime provides a core library and set of utilities which may be used for the
 creation and parsing of messages using the Multipurpose Internet Mail
 Extension (MIME).
 .
 This package contains the shared library of the older version of GMime.
 .
 It is recommended to use libgmime-3.0-0 instead of this package.