diff --git a/build.gradle b/build.gradle
index dc918be..b944a14 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ subprojects {
 
     sourceCompatibility = 1.7
     group = 'ch.dissem.jabit'
-    version = '1.0.0'
+    version = '1.0.1-SNAPSHOT'
 
     ext.isReleaseVersion = !version.endsWith("SNAPSHOT")
 
@@ -34,7 +34,7 @@ subprojects {
     }
 
     signing {
-        required { isReleaseVersion && gradle.taskGraph.hasTask("uploadArchives") }
+        required { isReleaseVersion }
         sign configurations.archives
     }
 
diff --git a/core/src/main/java/ch/dissem/bitmessage/BitmessageContext.java b/core/src/main/java/ch/dissem/bitmessage/BitmessageContext.java
index 28e8483..dbc08d3 100644
--- a/core/src/main/java/ch/dissem/bitmessage/BitmessageContext.java
+++ b/core/src/main/java/ch/dissem/bitmessage/BitmessageContext.java
@@ -200,6 +200,7 @@ public class BitmessageContext {
                     LOG.info("Public key is missing from recipient. Requesting.");
                     requestPubkey(msg.getFrom(), to);
                     msg.setStatus(PUBKEY_REQUESTED);
+                    msg.addLabels(ctx.getMessageRepository().getLabels(Label.Type.OUTBOX));
                     ctx.getMessageRepository().save(msg);
                 } else {
                     LOG.info("Sending message.");
@@ -224,7 +225,7 @@ public class BitmessageContext {
                 requestingIdentity,
                 address,
                 new GetPubkey(address),
-                +28 * DAY
+                +2 * DAY
         );
     }
 
diff --git a/core/src/main/java/ch/dissem/bitmessage/ProofOfWorkService.java b/core/src/main/java/ch/dissem/bitmessage/ProofOfWorkService.java
index 19e231f..ecd1099 100644
--- a/core/src/main/java/ch/dissem/bitmessage/ProofOfWorkService.java
+++ b/core/src/main/java/ch/dissem/bitmessage/ProofOfWorkService.java
@@ -4,6 +4,7 @@ import ch.dissem.bitmessage.entity.BitmessageAddress;
 import ch.dissem.bitmessage.entity.ObjectMessage;
 import ch.dissem.bitmessage.entity.Plaintext;
 import ch.dissem.bitmessage.entity.PlaintextHolder;
+import ch.dissem.bitmessage.entity.payload.Pubkey;
 import ch.dissem.bitmessage.ports.MessageRepository;
 import ch.dissem.bitmessage.ports.ProofOfWorkEngine;
 import ch.dissem.bitmessage.ports.ProofOfWorkRepository;
@@ -42,10 +43,10 @@ public class ProofOfWorkService implements ProofOfWorkEngine.Callback, InternalC
     }
 
     public void doProofOfWork(BitmessageAddress recipient, ObjectMessage object) {
-        long nonceTrialsPerByte = recipient == null ?
-                ctx.getNetworkNonceTrialsPerByte() : recipient.getPubkey().getNonceTrialsPerByte();
-        long extraBytes = recipient == null ?
-                ctx.getNetworkExtraBytes() : recipient.getPubkey().getExtraBytes();
+        Pubkey pubkey = recipient == null ? null : recipient.getPubkey();
+
+        long nonceTrialsPerByte = pubkey == null ? ctx.getNetworkNonceTrialsPerByte() : pubkey.getNonceTrialsPerByte();
+        long extraBytes = pubkey == null ? ctx.getNetworkExtraBytes() : pubkey.getExtraBytes();
 
         powRepo.putObject(object, nonceTrialsPerByte, extraBytes);
         if (object.getPayload() instanceof PlaintextHolder) {
diff --git a/core/src/main/java/ch/dissem/bitmessage/entity/valueobject/Label.java b/core/src/main/java/ch/dissem/bitmessage/entity/valueobject/Label.java
index 7c37973..02f0384 100644
--- a/core/src/main/java/ch/dissem/bitmessage/entity/valueobject/Label.java
+++ b/core/src/main/java/ch/dissem/bitmessage/entity/valueobject/Label.java
@@ -79,6 +79,7 @@ public class Label implements Serializable {
         INBOX,
         BROADCAST,
         DRAFT,
+        OUTBOX,
         SENT,
         UNREAD,
         TRASH
diff --git a/repositories/src/main/java/ch/dissem/bitmessage/repository/JdbcAddressRepository.java b/repositories/src/main/java/ch/dissem/bitmessage/repository/JdbcAddressRepository.java
index 337d50a..bf15a6a 100644
--- a/repositories/src/main/java/ch/dissem/bitmessage/repository/JdbcAddressRepository.java
+++ b/repositories/src/main/java/ch/dissem/bitmessage/repository/JdbcAddressRepository.java
@@ -152,13 +152,25 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
 
     private void update(BitmessageAddress address) throws IOException, SQLException {
         try (Connection connection = config.getConnection()) {
-            PreparedStatement ps = connection.prepareStatement(
-                    "UPDATE Address SET alias=?, public_key=?, private_key=?, subscribed=? WHERE address=?");
-            ps.setString(1, address.getAlias());
-            writePubkey(ps, 2, address.getPubkey());
-            writeBlob(ps, 3, address.getPrivateKey());
-            ps.setBoolean(4, address.isSubscribed());
-            ps.setString(5, address.getAddress());
+            StringBuilder statement = new StringBuilder("UPDATE Address SET alias=?");
+            if (address.getPubkey() != null) {
+                statement.append(", public_key=?");
+            }
+            if (address.getPrivateKey() != null) {
+                statement.append(", private_key=?");
+            }
+            statement.append(", subscribed=? WHERE address=?");
+            PreparedStatement ps = connection.prepareStatement(statement.toString());
+            int i = 0;
+            ps.setString(++i, address.getAlias());
+            if (address.getPubkey() != null) {
+                writePubkey(ps, ++i, address.getPubkey());
+            }
+            if (address.getPrivateKey() != null) {
+                writeBlob(ps, ++i, address.getPrivateKey());
+            }
+            ps.setBoolean(++i, address.isSubscribed());
+            ps.setString(++i, address.getAddress());
             ps.executeUpdate();
         }
     }
diff --git a/repositories/src/test/java/ch/dissem/bitmessage/repository/JdbcAddressRepositoryTest.java b/repositories/src/test/java/ch/dissem/bitmessage/repository/JdbcAddressRepositoryTest.java
index 18fc83c..18e70b2 100644
--- a/repositories/src/test/java/ch/dissem/bitmessage/repository/JdbcAddressRepositoryTest.java
+++ b/repositories/src/test/java/ch/dissem/bitmessage/repository/JdbcAddressRepositoryTest.java
@@ -128,6 +128,17 @@ public class JdbcAddressRepositoryTest extends TestBase {
         assertEquals("Test-Alias", address.getAlias());
     }
 
+    @Test
+    public void ensureExistingKeysAreNotDeleted() {
+        BitmessageAddress address = new BitmessageAddress(IDENTITY_A);
+        address.setAlias("Test");
+        repo.save(address);
+        BitmessageAddress identityA = repo.getAddress(IDENTITY_A);
+        assertNotNull(identityA.getPubkey());
+        assertNotNull(identityA.getPrivateKey());
+        assertEquals("Test", identityA.getAlias());
+    }
+
     @Test
     public void testRemove() throws Exception {
         BitmessageAddress address = repo.getAddress(IDENTITY_A);