Bulwark
23 published extensions in the directory.
AI Writing AssistantBulwark, verified authorA chat next to the message you write or read: rewrite, translate, proofread, summarise and draft replies with an OpenAI-compatible service (OpenAI, Ollama, ...) or Anthropic. Works on the text you highlight. Nothing is sent until you ask.Install
Auto TagBulwark, verified authorAutomatically tags incoming emails based on configurable rulesInstall
Birthday remindersBulwark, verified authorUpcoming birthdays from your contacts in the sidebar, reminders on the day and a few days before, a quick birthday greeting and, if you like, birthday events in your calendar.Install
Email to taskBulwark, verified authorTurn a message into a task in Bulwark's own tasks, Vikunja, Todoist or a CalDAV task list, with a link back to the message and a due date taken from the text.Install
NextcloudBulwark, verified authorConnect your Nextcloud: attach files from it, send large files as share links, and save attachments and messages to it. You sign in through Nextcloud itself; the app password stays on the webmail server.Install
Outlook-style Quote HeadersBulwark, verified authorReplaces the default reply/forward quote header with an Outlook-style From / Sent / To / Cc / Subject block. The original message follows directly, with no blockquote indent.Install
Paperless-ngxBulwark, verified authorSend attachments and messages to Paperless-ngx, find your documents there and attach them to new mail.Install
Package trackingBulwark, verified authorFinds tracking numbers in your mail, shows where each parcel is and tells you when its status changes.InstallReply-All GuardrailBulwark, verified authorAsks for confirmation before reply-all (and optionally before any send) when the recipient count crosses a threshold. Catches accidental fan-outs on large threads.Install
Time zone helperBulwark, verified authorShows the time where the people you write to are: participants' local times in the event form, the sender's local time in a message, a time in several zones for the composer and an optional world clock.Install
TranslateBulwark, verified authorTranslate received emails into your preferred language using a free public translation API (MyMemory by default, LibreTranslate optional).Install
S/MIMEBulwark, verified authorEnd-to-end S/MIME for webmail: sign (opaque or detached) and encrypt outgoing messages, and automatically verify signatures and decrypt incoming CMS (PKCS#7) mail. Private keys are imported from a PKCS#12 (.p12/.pfx) file, encrypted at rest with a passphrase, and unlocked into non-extractable WebCrypto keys that never leave your browser. Runs in the privileged (same-origin) plugin tier so all cryptography happens locally with bundled pkijs/asn1js.Install
Spam ScoreBulwark, verified authorAdds a Spam Analysis section to a message's "More details" panel. Reads the raw spam-filter headers (SpamAssassin / Rspamd score, threshold and level, plus any AI verdict) directly off the message and shows a colour-coded breakdown.Install
Calendar AgendaBulwark, verified authorShows an agenda of your upcoming calendar events in the sidebar.Install
External Mail WarningBulwark, verified authorWarns before sending email to recipients outside your safe-domain list, and flags incoming messages from external senders with a banner. Admins can pre-populate organisation-wide safe domains.Install
Impersonation NoticeBulwark, verified authorShows a persistent top-of-app banner when the active session is a Stalwart master-user impersonation (username contains '%'), with a configurable 'Return to platform' button. Detection is automatic; admins configure the platform return URL and the banner text.Install
Jitsi MeetBulwark, verified authorAdds a 'Add Jitsi meeting' button to calendar events. Meeting URLs are generated server-side via the /api/jitsi sidecar.Install
Gravatar AvatarsBulwark, verified authorResolves Gravatar profile pictures for email contacts via the avatar transform hookInstall
External Link WarningBulwark, verified authorWarns before opening external links to unknown domains. Admins can pre-populate a trusted domain list.Install
External Recipient WarningBulwark, verified authorWarns before sending email to recipients outside your safe-domain list, and flags incoming messages from external senders with a banner. Admins can pre-populate organisation-wide safe domains.Install