Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
evolution-ews
evolution-ews(x86-32)
libcamelews-priv.so
libcamelews.so
libebookbackendews.so
libecalbackendews.so
libevolution-ews.so

Requires :

libgobject-2.0.so.0
libpthread.so.0
libedataserver-1.2.so.23
libcamelews-priv.so
libdl.so.2
rtld(GNU_HASH)
libpangocairo-1.0.so.0
libgdk_pixbuf-2.0.so.0
libm.so.6
libevolution-mail.so
libicalss.so.3
libpango-1.0.so.0
evolution-data-server => 3.28.5
libc.so.6(GLIBC_2.1.3)
libnssutil3.so
libemail-engine.so
libc.so.6(GLIBC_2.2)
libevolution-calendar.so
libevolution-shell.so
libevolution-mail-composer.so
libpthread.so.0(GLIBC_2.0)
libgmodule-2.0.so.0
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
libcairo.so.2
libgdk-3.so.0
libatk-1.0.so.0
libebackend-1.2.so.10
libebook-contacts-1.2.so.2
libc.so.6
libc.so.6(GLIBC_2.3.4)
libicalvcal.so.3
libssl3.so
libsoup-2.4.so.1
libedata-cal-1.2.so.28
libical.so.3
libxml2.so.2(LIBXML2_2.6.0)
libc.so.6(GLIBC_2.4)
libsqlite3.so.0
evolution => 3.28.5
libjavascriptcoregtk-4.0.so.18
libmspack => 0.4
libnss3.so
libnspr4.so
libgio-2.0.so.0
rpmlib(PayloadIsXz) <= 5.2-1
libevolution-ews.so
libc.so.6(GLIBC_2.7)
libgtk-3.so.0
libebook-1.2.so.19
libc.so.6(GLIBC_2.0)
libmspack.so.0
libxml2.so.2(LIBXML2_2.9.0)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libevolution-mail-formatter.so
libcairo-gobject.so.2
libedataserverui-1.2.so.2
libxml2.so.2
libplds4.so
libplc4.so
libecal-1.2.so.19
libxml2.so.2(LIBXML2_2.4.30)
evolution-ews-langpacks = 3.28.5-6.el7
libglib-2.0.so.0
libwebkit2gtk-4.0.so.37
libcamel-1.2.so.61
libevolution-util.so
/sbin/ldconfig
libsecret-1.so.0
libedata-book-1.2.so.25
libsmime3.so

Content of RPM :
/usr/lib/evolution-data-server/addressbook-backends/libebookbackendews.so
/usr/lib/evolution-data-server/calendar-backends/libecalbackendews.so
/usr/lib/evolution-data-server/camel-providers/libcamelews.so
/usr/lib/evolution-data-server/camel-providers/libcamelews.urls
/usr/lib/evolution-data-server/registry-modules/module-ews-backend.so
/usr/lib/evolution-ews/libcamelews-priv.so
/usr/lib/evolution-ews/libevolution-ews.so
/usr/lib/evolution/modules/module-ews-configuration.so
/usr/share/doc/evolution-ews-3.28.5
/usr/share/doc/evolution-ews-3.28.5/NEWS
/usr/share/doc/evolution-ews-3.28.5/README
/usr/share/evolution-data-server/ews/windowsZones.xml
/usr/share/evolution/errors/module-ews-configuration.error
/usr/share/licenses/evolution-ews-3.28.5
/usr/share/licenses/evolution-ews-3.28.5/COPYING
/usr/share/metainfo/org.gnome.Evolution-ews.metainfo.xml