nextcloud/mail

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💌 Mail app for Nextcloud

Stars: 1k
Forks: 348
Open beginner issues: 2
Indexed issues: 811
Avg merge: 12h 28m
Merged PRs (30d): 91

Dominant language: JavaScript
License: AGPL-3.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue hacktoberfest

Beginner friendly Everything

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811 open issues indexed

Show email next to name in Search dropdown Open

0. to triage enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

nextcloud/mail#13703 · Opened Sep 18, 2026
Collect sender addresses from incoming messages for autocomplete Open

0. to triage enhancement

Difficulty 3/5 1-2 days Newbie friendliness 72/100

nextcloud/mail#13702 · Opened Sep 18, 2026
findIdsByQuery() can return duplicate message IDs when UID input is chunked Open

0. to triage bug

Difficulty 3/5 1-2 days Newbie friendliness 76/100

nextcloud/mail#13700 · Opened Sep 18, 2026
findNewIds() chunking can return massive duplicate/already-known ID sets and cause memory exhaustion Open

0. to triage bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

nextcloud/mail#13699 · 2 comments · Opened Sep 18, 2026
Could not open folder Open

0. to triage bug

Difficulty 3/5 1-2 days Newbie friendliness 50/100

nextcloud/mail#13698 · Opened Sep 18, 2026
Mail sync not working due to charset issue. Open

0. to triage bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

nextcloud/mail#13696 · Opened Sep 17, 2026
BUG: Updating Mail App exceeds Workers + CPU and terminates Nextcloud Service Open

0. to triage bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

nextcloud/mail#13695 · Opened Sep 16, 2026
Nextcloud Mail causes extreme memory usage and freezes browser tab on initial load Open

0. to triage bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

nextcloud/mail#13692 · 3 comments · Opened Sep 16, 2026
Mail 5.12.0: New message compose window opens aligned to far right of screen Open

0. to triage bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

nextcloud/mail#13691 · 3 comments · 2 reactions · Opened Sep 16, 2026
application/octet-stream .ics attachment not detected as event Open

0. to triage bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

nextcloud/mail#13688 · Opened Sep 15, 2026
[Bug] Received reply displays quoted previous message instead of the actual new message body Open

0. to triage bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

nextcloud/mail#13679 · Opened Sep 15, 2026
Allow updating IMAP and SMTP setting through settings UI without entering password again Open

1. to develop enhancement

Difficulty 3/5 1-2 days Newbie friendliness 68/100

nextcloud/mail#13678 · 3 comments · Opened Sep 15, 2026
Feature to archive/backup emails from imap server in nextcloud mail system and be able to search them Open

0. to triage enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

nextcloud/mail#13675 · 1 reaction · Opened Sep 13, 2026
Search in a large mailbox freezes the browser: sync ignores the filter when the query has a subject term Open

0. to triage bug

nextcloud/mail#13673 · 2 comments · 2 reactions · 1 assignee · Opened Sep 11, 2026
Inserting raw HTML signature in account settings strips it of styles Open

1. to develop enhancement feature:composer

Difficulty 3/5 1-2 days Newbie friendliness 55/100

nextcloud/mail#13672 · 3 comments · Opened Sep 11, 2026
Specify rich text colors in RGB or Hex by default Open

0. to triage enhancement

Difficulty 4/5 3-5 days Newbie friendliness 56/100

nextcloud/mail#13669 · Opened Sep 11, 2026
SMTP XOAUTH2 authentication ignores the configured SMTP user Open

0. to triage bug

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

nextcloud/mail#13667 · 1 comment · Opened Sep 10, 2026
Cyrillic contact name autocomplete fails in Cc after Reply all Open

1. to develop bug feature:composer

Difficulty 3/5 1-2 days Newbie friendliness 68/100

nextcloud/mail#13664 · 1 comment · Opened Sep 9, 2026
Migrate off the OCA.Viewer global before Nextcloud 36 Open

1. to develop blocked bug

Difficulty 3/5 1-2 days Newbie friendliness 76/100

nextcloud/mail#13662 · 3 comments · 1 reaction · Opened Sep 9, 2026
List Layout only shows top 20 messages if there's no vertical scrollbar (tall screen, tiny text) Open

1. to develop bug

Difficulty 3/5 1-2 days Newbie friendliness 60/100

nextcloud/mail#13642 · 1 comment · Opened Sep 6, 2026
UI issue : Follow up on expand overlap the other mails Open

1. to develop bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

nextcloud/mail#13640 · 1 comment · Opened Sep 4, 2026
Vue3 migration organization Open

discussion

nextcloud/mail#13622 · 2 reactions · 2 assignees · Opened Sep 2, 2026
Background sync interval never adapts to user activity Open

1. to develop bug performance 🚀

Difficulty 3/5 1-2 days Newbie friendliness 62/100

nextcloud/mail#13620 · Opened Sep 2, 2026
[Bug] IMAP sync can silently miss individual INBOX messages while newer messages sync successfully Open

0. to triage bug needs info

nextcloud/mail#13590 · 2 comments · 1 assignee · Opened Aug 30, 2026
"Could not open folder" Open

3. to review bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

nextcloud/mail#13580 · 3 comments · Opened Aug 26, 2026
Reduce network usage composing mails with large inline attachments Open

1. to develop enhancement feature:composer feature:drafts performance 🚀

Difficulty 4/5 3-5 days Newbie friendliness 48/100

nextcloud/mail#13536 · 1 reaction · Opened Aug 21, 2026
Improve responsiveness composing mails with large inline attachments Open

1. to develop enhancement feature:composer performance 🚀

Difficulty 3/5 1-2 days Newbie friendliness 58/100

nextcloud/mail#13535 · 2 reactions · Opened Aug 21, 2026
Move-folder modal: self-move guard is dead code and leaves moving stuck Open

1. to develop bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

nextcloud/mail#13534 · 1 comment · Opened Aug 20, 2026
AccountSettings hide sieve, filters, etc with invalid password Open

1. to develop bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

nextcloud/mail#13515 · Opened Aug 18, 2026
Auto-created tentative appointments lose tentative status on organizer updates (absentCreateStatus not reapplied to unanswered events) Open

0. to triage bug feature:imip needs info

nextcloud/mail#13504 · 3 comments · 1 assignee · Opened Aug 18, 2026
Automated tentative appointment creation records success (imip_processed=1, imip_error=0) and permanently retires invitations whose DAV delivery actually failed Open

0. to triage bug feature:imip needs info

nextcloud/mail#13503 · 2 comments · 1 assignee · Opened Aug 18, 2026
Outbox message re-sent on every background job run when IMAP LOGOUT fails (exception in `finally` discards the send state) Open

0. to triage bug

nextcloud/mail#13495 · 3 comments · 1 assignee · Opened Aug 16, 2026
Intermittent duplicate outgoing emails submitted twice to Postfix within 3 seconds Open

0. to triage bug

nextcloud/mail#13488 · 4 comments · 1 assignee · Opened Aug 14, 2026
Newlines lost on plain text drafts with pasted text Open

0. to triage bug

nextcloud/mail#13483 · 1 comment · 1 assignee · Opened Aug 13, 2026
Indicate the actual sender in delegation Open

1. to develop enhancement feature: delegation

nextcloud/mail#13480 · 2 comments · 1 assignee · Opened Aug 13, 2026
Only one S/MIME certificate per account is used for decryption, even when multiple certs are imported Open

0. to triage bug feature:smime needs info stale

nextcloud/mail#13479 · 2 comments · 1 assignee · Opened Aug 13, 2026
ISO-2022-JP emails are garbled in Mail 5.10.12 [Minimal fix available] Open

1. to develop bug

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

nextcloud/mail#13472 · 1 comment · Opened Aug 12, 2026
View text version of multipart/alternative Open

1. to develop enhancement

Difficulty 3/5 1-2 days Newbie friendliness 55/100

nextcloud/mail#13466 · 4 comments · Opened Aug 11, 2026
Make subject field stand out like to and cc Open

0. to triage enhancement feature:composer

nextcloud/mail#13444 · 1 comment · 1 assignee · Opened Aug 8, 2026
Restrict email downloading (governance) Open

1. to develop enhancement feature parity feature: governance

nextcloud/mail#13441 · 1 assignee · Opened Aug 7, 2026
Restrict forwarding (governance) Open

1. to develop enhancement feature parity feature: governance

nextcloud/mail#13440 · 1 assignee · Opened Aug 7, 2026
[Bug]: Image proxy returns 400 Bad Request for delegated/shared mailbox users (works fine for account owner) Open

1. to develop bug feature: delegation

Difficulty 4/5 3-5 days Newbie friendliness 48/100

nextcloud/mail#13438 · 1 comment · Opened Aug 7, 2026
Replying to GitHub notifications Open

1. to develop bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

nextcloud/mail#13402 · 3 comments · Opened Aug 2, 2026
PreviewEnhancementProcessingJob loads the whole 14-day backlog into memory at once and crash-loops Open

1. to develop bug

nextcloud/mail#13391 · 2 comments · 1 reaction · 1 assignee · Opened Jul 31, 2026
Add a setting to control where snoozed emails reappear Open

1. to develop enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

nextcloud/mail#13382 · 1 comment · Opened Jul 30, 2026
Unread filter in threaded view only returns threads whose latest message is unread Open

0. to triage bug needs info stale

nextcloud/mail#13381 · 2 comments · 1 assignee · Opened Jul 29, 2026
S/MIME certificate import stores Common Name instead of email address, causing decryption failure Open

0. to triage bug feature:smime needs info stale

nextcloud/mail#13379 · 3 comments · 1 assignee · Opened Jul 29, 2026
Shared folders / mailboxes all display as "INBOX" instead of their actual names Open

0. to triage bug needs info

nextcloud/mail#13368 · 11 comments · 1 reaction · 1 assignee · Opened Jul 27, 2026
REST API to mark mail messages as read/unread Open

1. to develop enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

nextcloud/mail#13363 · 3 comments · Opened Jul 25, 2026
Error Could not get message flag options from IMAP: IMAP error reported by server. Open

1. to develop bug

nextcloud/mail#13350 · 9 comments · 1 assignee · Opened Jul 24, 2026

nextcloud/mail

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