diff --git a/messageviewer/src/header/headerstyle_util.h b/messageviewer/src/header/headerstyle_util.h
--- a/messageviewer/src/header/headerstyle_util.h
+++ b/messageviewer/src/header/headerstyle_util.h
@@ -74,9 +74,6 @@
     static Q_REQUIRED_RESULT QString dateStr(const QDateTime &dateTime);
 
     static Q_REQUIRED_RESULT QString dateShortStr(const QDateTime &dateTime);
-    static Q_REQUIRED_RESULT QSharedPointer<KMime::Headers::Generics::MailboxList> resentFromList(KMime::Message *message);
-
-    static Q_REQUIRED_RESULT QSharedPointer<KMime::Headers::Generics::MailboxList> resentToList(KMime::Message *message);
 
     Q_REQUIRED_RESULT xfaceSettings xface(const HeaderStyle *style, KMime::Message *message) const;
 private:
diff --git a/messageviewer/src/header/headerstyle_util.cpp b/messageviewer/src/header/headerstyle_util.cpp
--- a/messageviewer/src/header/headerstyle_util.cpp
+++ b/messageviewer/src/header/headerstyle_util.cpp
@@ -250,30 +250,6 @@
     return formatter.dateString(dateTime);
 }
 
-QSharedPointer<KMime::Headers::Generics::MailboxList> mailboxesFromHeader(const KMime::Headers::Base *hrd)
-{
-    QSharedPointer<KMime::Headers::Generics::MailboxList> mailboxList(new KMime::Headers::Generics::MailboxList());
-    const QByteArray &data = hrd->as7BitString(false);
-    mailboxList->from7BitString(data);
-    return mailboxList;
-}
-
-QSharedPointer<KMime::Headers::Generics::MailboxList> HeaderStyleUtil::resentFromList(KMime::Message *message)
-{
-    if (auto hrd = message->headerByType("Resent-From")) {
-        return mailboxesFromHeader(hrd);
-    }
-    return nullptr;
-}
-
-QSharedPointer<KMime::Headers::Generics::MailboxList> HeaderStyleUtil::resentToList(KMime::Message *message)
-{
-    if (auto hrd = message->headerByType("Resent-To")) {
-        return mailboxesFromHeader(hrd);
-    }
-    return nullptr;
-}
-
 void HeaderStyleUtil::updateXFaceSettings(QImage photo, xfaceSettings &settings) const
 {
     if (!photo.isNull()) {