diff --git a/app/core/src/main/java/com/fsck/k9/AccountPreferenceSerializer.kt b/app/core/src/main/java/com/fsck/k9/AccountPreferenceSerializer.kt
index fe491c98d67ab289155531a604b2e412978d85f6..0b30121620040f425e3b28383c53c468bf139be6 100644
--- a/app/core/src/main/java/com/fsck/k9/AccountPreferenceSerializer.kt
+++ b/app/core/src/main/java/com/fsck/k9/AccountPreferenceSerializer.kt
@@ -124,7 +124,7 @@ class AccountPreferenceSerializer(
             maxPushFolders = storage.getInt("$accountUuid.maxPushFolders", 10)
             isSubscribedFoldersOnly = storage.getBoolean("$accountUuid.subscribedFoldersOnly", false)
             maximumPolledMessageAge = storage.getInt("$accountUuid.maximumPolledMessageAge", -1)
-            maximumAutoDownloadMessageSize = storage.getInt("$accountUuid.maximumAutoDownloadMessageSize", 1048576)
+            maximumAutoDownloadMessageSize = storage.getInt("$accountUuid.maximumAutoDownloadMessageSize", 2097152)
             messageFormat = getEnumStringPref<MessageFormat>(storage, "$accountUuid.messageFormat", DEFAULT_MESSAGE_FORMAT)
             val messageFormatAuto = storage.getBoolean("$accountUuid.messageFormatAuto", DEFAULT_MESSAGE_FORMAT_AUTO)
             if (messageFormatAuto && messageFormat == MessageFormat.TEXT) {
@@ -600,7 +600,7 @@ class AccountPreferenceSerializer(
             maxPushFolders = 10
             isSubscribedFoldersOnly = false
             maximumPolledMessageAge = -1
-            maximumAutoDownloadMessageSize = 1048576
+            maximumAutoDownloadMessageSize = 2097152
             messageFormat = DEFAULT_MESSAGE_FORMAT
             isMessageFormatAuto = DEFAULT_MESSAGE_FORMAT_AUTO
             isMessageReadReceipt = DEFAULT_MESSAGE_READ_RECEIPT