diff --git a/agents/followupreminderagent/followupreminderagent.h b/agents/followupreminderagent/followupreminderagent.h
--- a/agents/followupreminderagent/followupreminderagent.h
+++ b/agents/followupreminderagent/followupreminderagent.h
@@ -36,6 +36,7 @@
 
 public Q_SLOTS:
     void reload();
+    void addReminder(const QString &messageId, Akonadi::Item::Id messageItemId, const QString &to, const QString &subject,  const QDate &followupDate, Akonadi::Item::Id todoId);
 
 protected:
     void itemAdded(const Akonadi::Item &item, const Akonadi::Collection &collection) override;
diff --git a/agents/followupreminderagent/followupreminderagent.cpp b/agents/followupreminderagent/followupreminderagent.cpp
--- a/agents/followupreminderagent/followupreminderagent.cpp
+++ b/agents/followupreminderagent/followupreminderagent.cpp
@@ -22,6 +22,8 @@
 #include <FollowupReminder/FollowUpReminderUtil>
 #include "followupreminderadaptor.h"
 #include "followupreminderagentsettings.h"
+#include <FollowupReminder/FollowUpReminderInfo>
+
 #include <KMime/Message>
 
 #include <AkonadiCore/ChangeRecorder>
@@ -115,6 +117,19 @@
     }
 }
 
+void FollowUpReminderAgent::addReminder(const QString &messageId, Akonadi::Item::Id messageItemId, const QString &to, const QString &subject, const QDate &followupDate, Akonadi::Item::Id todoId)
+{
+    auto info = new FollowUpReminder::FollowUpReminderInfo();
+    info->setMessageId(messageId);
+    info->setOriginalMessageItemId(messageItemId);
+    info->setTo(to);
+    info->setSubject(subject);
+    info->setFollowUpReminderDate(followupDate);
+    info->setTodoId(todoId);
+
+    mManager->addReminder(info);
+}
+
 QString FollowUpReminderAgent::printDebugInfo() const
 {
     return mManager->printDebugInfo();
diff --git a/agents/followupreminderagent/followupremindermanager.h b/agents/followupreminderagent/followupremindermanager.h
--- a/agents/followupreminderagent/followupremindermanager.h
+++ b/agents/followupreminderagent/followupremindermanager.h
@@ -36,6 +36,7 @@
     ~FollowUpReminderManager();
 
     void load(bool forceReloadConfig = false);
+    void addReminder(FollowUpReminder::FollowUpReminderInfo *reminder); // takes ownership
     void checkFollowUp(const Akonadi::Item &item, const Akonadi::Collection &col);
 
     Q_REQUIRED_RESULT QString printDebugInfo() const;
diff --git a/agents/followupreminderagent/followupremindermanager.cpp b/agents/followupreminderagent/followupremindermanager.cpp
--- a/agents/followupreminderagent/followupremindermanager.cpp
+++ b/agents/followupreminderagent/followupremindermanager.cpp
@@ -85,6 +85,15 @@
     }
 }
 
+void FollowUpReminderManager::addReminder(FollowUpReminder::FollowUpReminderInfo *info)
+{
+    if (info->isValid()) {
+        FollowUpReminderUtil::writeFollowupReminderInfo(FollowUpReminderUtil::defaultConfig(), info, true);
+    } else {
+        delete info;
+    }
+}
+
 void FollowUpReminderManager::slotReparseConfiguration()
 {
     load(true);
diff --git a/agents/followupreminderagent/org.freedesktop.Akonadi.FollowUpReminder.xml b/agents/followupreminderagent/org.freedesktop.Akonadi.FollowUpReminder.xml
--- a/agents/followupreminderagent/org.freedesktop.Akonadi.FollowUpReminder.xml
+++ b/agents/followupreminderagent/org.freedesktop.Akonadi.FollowUpReminder.xml
@@ -11,5 +11,14 @@
        <arg type="s" direction="out"/>
     </method>
     <method name="reload" />
+    <method name="addReminder">
+        <arg name="messageId" type="s" direction="in" />
+        <arg name="originalMessageItemId" type="x" direction="in" />
+        <arg name="to" type="s" direction="in" />
+        <arg name="subject" type="s" direction="in" />
+        <arg name="followupDate" type="(iii)" direction="in" />
+        <annotation name="org.qtproject.QtDBus.QtTypeName.In4" value="QDate" />
+        <arg name="todoId" type="x" direction="in" />
+    </method>
   </interface>
 </node>