RustBox
RustBox
Inbox0 messages
No message selectedSelect a message from the list.
New message
Options
Markdown preview
Edit inline image
Crop / cut

Resizing changes only the displayed size. Cropping creates a new CID image and replaces the previous inline attachment.
Folders
Mailbox storage
Server quotaLoading…
Measured folders0.0 MB
FoldersShare of measured folder storage

Folder sizes are calculated from message sizes reported by IMAP. Server quota can include additional data, so the totals may differ.
Settings

Appearance

Personalize RustBox without changing mail behavior.

Advanced interface styling
Identity & signature
Sender identityAddress and headers used when this identity is selected in the composer.
Signature / footerMaintain separate text and HTML versions. Imported images are embedded into outgoing mail as inline CID images.
HTML signature / footer
You can also paste an image directly into this editor.
DefaultsChoose where this signature is inserted and, when OpenPGP is configured, its default behavior.
HTML signature editor
HTML source
Scripts, forms and unsafe attributes are removed before the signature is used.
Visual editorYou can add images and adjust the rendered signature.
Create filterBuild the rule visually and verify the preview before applying it.
Start from a templatePick a common rule and fill in the blanks.
RuleGive it a readable name and decide whether it is active.
WhenChoose what the incoming message must match.
Except ifThe rule is skipped when any exception matches.
ThenActions run in the order shown below.
What will happenLive explanation of the rule before you save it.
Ready
Complete the rule to see its effect. 

            

            

              

                
Apply to existing messagesSieve only runs on new mail.
                    Check which messages already in a folder match and apply the actions to them now.

              

              

                
                
                
              

              

            

            

              

              
            

          


        

      

    

  

  
    

      
Keyboard shortcuts

      

        

          
Global

          

            
/

            
Focus search

            
C

            
New message

            
V

            
Toggle selection mode

            
?

            
Show shortcuts

          

        

        

          
Message

          

            
J / K

            
Next / previous message

            
X

            
Select / unselect current message

            
R

            
Reply

            
A

            
Reply all

            
F

            
Forward

            
E

            
Archive

            
M

            
Read / unread

            
S

            
Flag / unflag

            
!

            
Spam / not spam

            
Delete

            
Delete / move to Trash

          

        

      

      
    

  

  
    

      
Label

      

        
        
        
        
      

    

  

  
    

      
Advanced search

      

        

          
          
          
          
          
          
          
          
          
          
          
        

        

          
Saved searches

          

        

        
      

    

  

  
    

      
Contacts

      

        

          

          

          

          

        

        

          
          

            
Photo

            
            

              
              
              
            

          

          
          
          
          
          
          
          
          
          
          
          
          
          
          
Groups
            

          

          

        

      

    

  

  
    

      
Duplicate contacts

      
Duplicates are detected when two contacts share a primary or alternate e-mail address. Choose
        which record to keep.

      

      
    

  

  
    

      
Calendar
        

      

      

      

      
    

  
  
    

      
Message headers

      

      

      
    

  

  
    

      
Add account