chore: new feature

src/modules/email/email.controller.ts

@@ -67,6 +67,14 @@ export class EmailController {
     return this.emailService.markMessageAsSeen(userId, Number(params.messageId), query.mailbox);
   }
 
+  @Patch("messages/:messageId/unseen")
+  @ApiOperation({ summary: "Mark a message as unseen" })
+  @ApiResponse({ status: 200, description: "Message marked as unseen successfully" })
+  @ApiResponse({ status: 404, description: "Message not found" })
+  markMessageAsUnseen(@UserDec("wildduckUserId") userId: string, @Param() params: MessageParamDto, @Query() query: MailboxIdQueryDto) {
+    return this.emailService.markMessageAsUnseen(userId, Number(params.messageId), query.mailbox);
+  }
+
   @Get("messages/inbox")
   @ApiOperation({ summary: "List messages in a inbox" })
   @ApiResponse({ status: 200, description: "List of messages" })

src/modules/email/services/email-spam.service.ts

@@ -33,6 +33,8 @@ export class EmailSpamService {
             }
           }
         } catch (_error) {
+          // Expected: 404 errors occur when the message doesn't exist in this mailbox
+          // Continue searching other mailboxes
           continue;
         }
       }
@@ -101,7 +103,7 @@ export class EmailSpamService {
             await firstValueFrom(
               this.mailServerService.domainAccess.addAllowedDomain(domainTag, {
                 domain: senderInfo.senderDomain,
-                description: `Auto-allowed due to not-spam report from message ${messageId}`,
+                // Removed description field as WildDuck API doesn't accept it for allowlist operations
               }),
             );
 

src/modules/email/services/email.service.ts

@@ -269,6 +269,27 @@ export class EmailService {
     }
   }
 
+  //==============================================
+  async markMessageAsUnseen(wildduckUserId: string, messageId: number, mailboxId: string) {
+    try {
+      this.logger.log(`Marking message ${messageId} as unseen in ${mailboxId} mailbox for user: ${wildduckUserId}`);
+
+      const { updated } = await firstValueFrom(this.mailServerService.messages.updateMessage(wildduckUserId, mailboxId, messageId, { seen: false }));
+
+      this.logger.log(`Message ${messageId} marked as unseen successfully in ${mailboxId}`);
+
+      return {
+        success: true,
+        message: EmailMessage.MESSAGE_MARKED_AS_UNSEEN_SUCCESSFULLY,
+        updated,
+      };
+    } catch (error) {
+      this.logger.error(
+        `Failed to mark message ${messageId} as unseen for user ${wildduckUserId}: ${error instanceof Error ? error.message : "Unknown error"}`,
+      );
+      throw error;
+    }
+  }
   //==============================================
   async getSentMessages(wildduckUserId: string, query: MessageListQueryDto) {
     try {