diff --git a/index.js b/index.js
index 27510a3..90d37e4 100644
--- a/index.js
+++ b/index.js
@@ -203,7 +203,7 @@ exports.increment_forward_counters = async function (connection) {
             const ttlres = await plugin.ttlcounterAsync('wdf:' + key, increment, limit, false);
             connection.loginfo(plugin, `Forward counter updated for ${key} (${increment}/${limit}): ${JSON.stringify(ttlres)}`);
         } catch (err) {
-            connection.logerror(plugin, err);
+            connection.logerror(plugin, err.message);
         }
     }
 };
@@ -543,7 +543,7 @@ exports.hook_rcpt = function (next, connection, params) {
                     returned = true;
                     const err = args && args[0];
                     if (err && /Error$/.test(err.name)) {
-                        connection.logerror(plugin, err);
+                        connection.logerror(plugin, err.message);
                         txn.notes.rejectCode = 'ERRC01';
                         return next(DENYSOFT, 'Failed to process recipient, try again [ERRC01]');
                     }
@@ -1193,7 +1193,7 @@ exports.hook_queue = function (next, connection) {
                     .increment_forward_counters(connection)
                     .then(next)
                     .catch(err => {
-                        connection.logerror(plugin, err);
+                        connection.logerror(plugin, err.message);
                         next();
                     });
             }
diff --git a/lib/auth.js b/lib/auth.js
index 3a3bf18..25599ad 100644
--- a/lib/auth.js
+++ b/lib/auth.js
@@ -10,6 +10,7 @@ const { parseReceived } = require('mailauth/lib/parse-received');
 
 async function hookMail(plugin, connection, params) {
     const txn = connection?.transaction;
+
     if (!txn) {
         return;
     }
@@ -33,7 +34,7 @@ async function hookMail(plugin, connection, params) {
         txn.notes.spfResult = spfResult;
     } catch (err) {
         txn.notes.spfResult = { error: err };
-        plugin.logerror(err, plugin, connection);
+        connection.logerror(plugin, err.message);
         return;
     }
 
@@ -71,7 +72,7 @@ async function hookDataPost(stream, plugin, connection) {
         }
     } catch (err) {
         txn.notes.dkimResult = { error: err };
-        plugin.logerror(err, plugin, connection);
+        connection.logerror(plugin, err.message);
     }
 
     // Step 3. ARC
@@ -89,7 +90,7 @@ async function hookDataPost(stream, plugin, connection) {
             }
         } catch (err) {
             txn.notes.arcResult = { error: err };
-            plugin.logerror(err, plugin, connection);
+            connection.logerror(plugin, err.message);
         }
     }
 
@@ -121,7 +122,7 @@ async function hookDataPost(stream, plugin, connection) {
             }
         } catch (err) {
             txn.notes.dmarcResult = { error: err };
-            plugin.logerror(err, plugin, connection);
+            connection.logerror(plugin, err.message);
         }
     }
 
@@ -147,7 +148,7 @@ async function hookDataPost(stream, plugin, connection) {
             txn.remove_header('bimi-indicator');
         } catch (err) {
             txn.notes.bimiResult = { error: err };
-            plugin.logerror(err, plugin, connection);
+            connection.logerror(plugin, err.message);
         }
     }
 
@@ -186,8 +187,8 @@ async function hookDataPost(stream, plugin, connection) {
             _dkim_selector: result.selector,
             _dkim_algo: result.algo,
             _dkim_mod_len: result.modulusLength,
-            _dkim_canon_header: result.format.split('/').shift(),
-            _dkim_canon_body: result.format.split('/').pop(),
+            _dkim_canon_header: result.format?.split('/').shift(),
+            _dkim_canon_body: result.format?.split('/').pop(),
             _dkim_body_size_source: result.sourceBodyLength,
             _dkim_body_size_canon: result.canonBodyLengthTotal,
             _dkim_body_size_limit: result.canonBodyLengthLimited && result.canonBodyLengthLimit,
diff --git a/lib/hooks.js b/lib/hooks.js
index dcd724f..f640cef 100644
--- a/lib/hooks.js
+++ b/lib/hooks.js
@@ -39,7 +39,7 @@ function dataPost(next, plugin, connection) {
             next();
         })
         .catch(err => {
-            plugin.logerror(err, plugin, connection);
+            connection.logerror(plugin, err.message);
             next();
         });