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Features

Everything a mail client should do, done properly

From the unified inbox to the last attachment, here is what Senin Mail does today. Every item on this page is in the app now.

  • Gmail, Outlook & IMAP
  • Real folders
  • Undo send

Inbox & sync

One inbox that stays current

Your accounts side by side, always up to date, with state that updates the moment it changes.

  • Unified inbox

    Every account in one list, grouped by day, with sender avatars and account labels.

  • Account switching

    Filter to one account from the sidebar or the chips above the list, each with its own unread count.

  • Incremental sync

    Gmail history, Outlook delta and IMAP UID sync fetch only what changed, so updates are small and quick.

  • Live refresh

    While the app is open, mail is re-checked every 10–15 seconds and the moment you return to the tab.

  • Read & unread, at a glance

    Unread mail has a rail, a dot and bold text; read mail fades back. It flips live when you read it elsewhere.

  • Search & filters

    Search across accounts, filter to Unread or Starred, and keep it all in the URL so it survives a refresh.

Reading

Read mail the way it was meant to be read

Conversations, formatting and attachments, without the clutter.

  • Threaded conversations

    The full thread, including your own replies, with earlier messages collapsed to one line.

  • Quoted text folded

    “On … wrote:” history hides behind a tap, so the new message is the first thing you read.

  • HTML mail, safely

    Newsletters and designed emails render in a sandbox. Scripts are off and remote images are blocked until you allow them.

  • Light & dark themes

    Plain mail adopts your theme. Designed emails show as authored, with an optional Dark view you can remember.

  • Attachments

    See every attachment with its size and a thumbnail for images, and download with one click.

  • Deep links

    Every message has a short, stable link such as /inbox/<id>. Bookmark it, share it, or open it in a new tab.

Writing

Compose without losing your place

The composer docks to the corner so you can keep reading while you write, and it has the things you'd expect from a modern editor.

  • Recipient chips, contact suggestions and paste-a-list support
  • Rich text: bold, italic, underline, lists, quotes, links
  • Cc, Bcc and up to 50 recipients
  • Minimise, go full screen, or work in the corner
  • Reply, Reply all and Forward, with the original quoted correctly

Safety nets

Mistakes are cheap here

Small features that save you from big regrets.

  • Undo send

    Every message waits 5 seconds before it leaves, and comes back to the editor if you change your mind.

  • Drafts in your mailbox

    Drafts autosave to your provider's real Drafts folder, so you can pick them up in any other app.

  • Failed sends come back

    If a send fails, the message reopens with everything you typed and a clear reason.

  • Confirmation first

    Trash and permanent delete ask before they act, and explain what will happen.

Organising

Folders, labels and mailboxes in one sidebar

Create folders here and they exist in your mailbox too. File messages, rename or delete folders, and use Archive, Spam and Trash the way your provider defines them.

  • Gmail labels, Outlook folders and IMAP mailboxes
  • Create, rename, move and delete, with provider-specific warnings
  • Unread counts for each folder
  • Messages move instantly and roll back if the provider refuses

Attachments

Attach, forward and download with ease

Everything about files, in one clear flow.

  • Drag and drop

    Attach up to 20 files, 18 MB in total, by dropping them on the composer.

  • Forward with files

    Forwarding carries the original attachments along, and tells you if anything didn't fit.

  • Safe downloads

    Files download rather than open, except images and PDFs that are safe to preview.

  • Resumes from drafts

    Open a saved draft and its attachments are right there, ready to send.

  • Large files, handled

    Big attachments are sent to Outlook in chunks, so they don't time out.

  • Cleaned filenames

    Names are sanitised so a hostile filename can't cause trouble on download.

By provider

What works where

Senin Mail uses each provider's own features, so a few behaviours differ slightly. Here is the honest picture.

Feature support by provider
TopicOutlook / IMAPGmail
Unified inbox & foldersFull supportFull support, with labels as folders
Threaded conversationsOutlook yes · IMAP shows one messageYes
Provider-side draftsYesYes
Delete foreverYes, from TrashMoves to Trash, which Gmail empties after 30 days
Update speedRe-checked every 10–15 sRe-checked every 10–15 s

Questions

About features

Can I use keyboard shortcuts?
Ctrl/⌘ + Enter sends a message, and Enter turns a typed address into a chip. A fuller set of shortcuts is on the roadmap.
Is there a mobile app?
Not yet. The site is responsive and works well in a phone browser; a dedicated app isn't planned for now.
Does it support calendar or contacts?
Not yet. Senin Mail focuses on mail. Contact suggestions come from the people in your own messages.
Can I use several accounts from the same provider?
Yes. Connect as many Gmail, Outlook or IMAP addresses as you like.

At a glance

The limits, stated plainly

recipients per message
50
attachments per message
20
total attachment size
18 MB
Undo send window
5s

Bring every inbox together

Connect your first account in about a minute. Free while we're in early access.