diff --git a/.github/workflows/test-deploy-network.yml b/.github/workflows/test-deploy-network.yml
index 04996133bb9..819da5744f9 100644
--- a/.github/workflows/test-deploy-network.yml
+++ b/.github/workflows/test-deploy-network.yml
@@ -89,7 +89,7 @@ jobs:
               {
                 "1" = {
                   type    = "unverified-cardano-passive-norelay",
-                  pool_id = "pool1y0uxkqyplyx6ld25e976t0s35va3ysqcscatwvy2sd2cwcareq7",
+                  pool_id = "pool13zafxlpfgymf474uv52qt557z5k5frn9p83yr55zp267wj5mpu4",
                 },
               }
             mithril_leader_aggregator_endpoint: https://aggregator.dev-preview.api.mithril.network/aggregator
diff --git a/internal/mithril-dmq/src/model/network.rs b/internal/mithril-dmq/src/model/network.rs
index 5924037a1cc..d72ab2b55dd 100644
--- a/internal/mithril-dmq/src/model/network.rs
+++ b/internal/mithril-dmq/src/model/network.rs
@@ -27,9 +27,9 @@ impl DmqNetwork {
     /// Preprod magic ID
     pub const PREPROD_MAGIC_ID: MagicId = 1; // TODO: Update magic ids for networks
     /// Preview magic ID
-    pub const PREVIEW_MAGIC_ID: MagicId = 2; // TODO: Update magic ids for networks
+    pub const PREVIEW_MAGIC_ID: MagicId = 3141592; // TODO: Update magic ids for networks
     /// Devnet magic ID
-    pub(crate) const DEVNET_MAGIC_ID: MagicId = 3141592; // TODO: Update magic ids for networks
+    pub(crate) const DEVNET_MAGIC_ID: MagicId = 0; // TODO: Update magic ids for networks
 
     /// Instantiates a DmqNetwork from its code and magic id
     pub fn from_code(
diff --git a/mithril-aggregator/src/services/signature_processor.rs b/mithril-aggregator/src/services/signature_processor.rs
index 5f3c63a2b65..5530b96f63b 100644
--- a/mithril-aggregator/src/services/signature_processor.rs
+++ b/mithril-aggregator/src/services/signature_processor.rs
@@ -1,7 +1,7 @@
 use std::{sync::Arc, time::Duration};
 
 use anyhow::anyhow;
-use slog::{Logger, error, trace, warn};
+use slog::{Logger, debug, error, trace, warn};
 
 use mithril_common::{
     StdResult,
@@ -10,7 +10,7 @@ use mithril_common::{
 };
 use tokio::{select, sync::watch::Receiver};
 
-use crate::MetricsService;
+use crate::{MetricsService, services::CertifierServiceError};
 
 use super::{CertifierService, SignatureConsumer};
 
@@ -90,13 +90,24 @@ impl SignatureProcessor for SequentialSignatureProcessor {
                                 .get_signature_registration_total_successful_since_startup()
                                 .increment(&[&origin_network]);
                         }
-                        Err(e) => {
-                            total_import_errors += 1;
-                            error!(
-                                self.logger, "Error dispatching single signature";
-                                "full_payload" => #?signature, "error" => ?e
-                            );
-                        }
+                        Err(err) => match err.downcast_ref::<CertifierServiceError>() {
+                            Some(CertifierServiceError::AlreadyCertified(signed_entity_type)) => {
+                                debug!(self.logger, "process_signatures::open_message_already_certified"; "signed_entity_type" => ?signed_entity_type, "party_id" => &signature.party_id);
+                            }
+                            Some(CertifierServiceError::Expired(signed_entity_type)) => {
+                                debug!(self.logger, "process_signatures::open_message_expired"; "signed_entity_type" => ?signed_entity_type, "party_id" => &signature.party_id);
+                            }
+                            Some(CertifierServiceError::NotFound(signed_entity_type)) => {
+                                debug!(self.logger, "process_signatures::not_found"; "signed_entity_type" => ?signed_entity_type, "party_id" => &signature.party_id);
+                            }
+                            Some(_) | None => {
+                                total_import_errors += 1;
+                                error!(
+                                    self.logger, "Error dispatching single signature";
+                                    "full_payload" => #?signature, "error" => ?err
+                                );
+                            }
+                        },
                     }
                 }
             }
diff --git a/mithril-common/Cargo.toml b/mithril-common/Cargo.toml
index a804954dc5e..04b63d448c2 100644
--- a/mithril-common/Cargo.toml
+++ b/mithril-common/Cargo.toml
@@ -19,7 +19,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 ignored = ["serde_bytes"]
 
 [features]
-default = ["rug-backend"]
+default = ["rug-backend", "allow_skip_signer_certification"]
 
 # Enables `rug-backend` features for `mithril-stm` dependency
 rug-backend = ["mithril-stm/rug-backend"]