To support token auth better, increase the password field (more of a double duty) to be 2048 chars

src/paperless_mail/migrations/0021_alter_mailaccount_password.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.1.7 on 2023-04-20 15:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("paperless_mail", "0020_mailaccount_is_token"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="mailaccount",
+            name="password",
+            field=models.CharField(max_length=2048, verbose_name="password"),
+        ),
+    ]

src/paperless_mail/models.py

@@ -36,7 +36,7 @@ class MailAccount(document_models.ModelWithOwner):
 
     username = models.CharField(_("username"), max_length=256)
 
-    password = models.CharField(_("password"), max_length=256)
+    password = models.CharField(_("password"), max_length=2048)
 
     is_token = models.BooleanField(_("Is token authentication"), default=False)