feat: increase message size from 30 to 50 mb gross

this PR allows attachments and videos of about 38 mb net (50 mb gross).

once relays are sufficiently updated, core will pick up the new default
(core currently uses 18 mb only, an old default of non-chatmail-era)

this is quite some boost in quality or video length, roughly a doubling,
which still being reasonably to overall storage
(with this PR we alllow a single message taking up to 1/10th of storage -
when chatmail was started, this was even 1/3rd.
note, that too large files will be deleted, but there will add a pre-message still)

.github/workflows/ci.yaml

@@ -29,7 +29,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha }}
           persist-credentials: false
       - name: download filtermail
-        run: curl -L https://github.com/chatmail/filtermail/releases/download/v0.7.7/filtermail-x86_64 -o /usr/local/bin/filtermail && chmod +x /usr/local/bin/filtermail
+        run: curl -L https://github.com/chatmail/filtermail/releases/download/v0.7.4/filtermail-x86_64 -o /usr/local/bin/filtermail && chmod +x /usr/local/bin/filtermail
       - name: run chatmaild tests 
         working-directory: chatmaild
         run: pipx run tox

CHANGELOG.md

@@ -1,38 +1,5 @@
 # Changelog for chatmail deployment
 
-## [1.13.0] - 2026-09-22
-
-### Bug Fixes
-
-- Actually use UTC time instead of just seemingly using it
-
-### Documentation
-
-- Describe Madmail v2 as a Rust chatmail relay
-
-### Features
-
-- Serve an APPVERSIONS.json index file to clients via IMAP metadata
-- *(mtail)* Deploy filtermail.mtail and gate mtail rule copy on mtail_address
-- *(mtail)* Validate programs during deploy
-- Move doveauth from dictproxy to lua/http
-- Distinguish AUTHENTICATION_FAILED/UNAVAILABLE login failures
-
-### Miscellaneous Tasks
-
-- Try to fix lack of RFC822 item support in madmail and make CI pass
-- Un-hardcode executable paths in some systemd service files
-- Follow the new mtail release source, upgrade 3.0.8 to 3.4.9
-- *(cmdeploy)* Refactor all pins into pins.py
-- *(doc)* Use sphinx roles for referencing repository files and dirs
-- update deltachat-android link to 2.59.1
-
-### Testing
-
-- Integrate lua testing into regular pytest run for push notifications
-- Cleanup and allow a repo-root level "pytest -n6" to succeed.
-- [**breaking**] Remove global registration of pytest plugins
-
 ## [1.12.0] - 2026-07-31
 
 ### Breaking Changes

RELEASE.md

@@ -1,12 +1,12 @@
 # Releasing a new version of chatmail relay
 
-For example, to release version 1.14.0 of chatmail relay, do the following steps.
+For example, to release version 1.13.0 of chatmail relay, do the following steps.
 
-1. Update the changelog: `git cliff --unreleased --tag 1.14.0 --prepend CHANGELOG.md` or `git cliff -u -t 1.14.0 -p CHANGELOG.md`.
+1. Update the changelog: `git cliff --unreleased --tag 1.13.0 --prepend CHANGELOG.md` or `git cliff -u -t 1.13.0 -p CHANGELOG.md`.
 
 2. Open the changelog in the editor, edit it if required.
 
-3. Commit the changes to the changelog with a commit message `chore(release): prepare for 1.14.0`.
+3. Commit the changes to the changelog with a commit message `chore(release): prepare for 1.9.0`.
 
 4. Open a PR with the new commit, merge it to main after review.
 

chatmaild/src/chatmaild/config.py

@@ -31,7 +31,7 @@ class Config:
         self.max_user_send_per_minute = int(params.pop("max_user_send_per_minute", 60))
         self.max_user_send_burst_size = int(params.pop("max_user_send_burst_size", 10))
         self.max_mailbox_size = params.pop("max_mailbox_size", "500M")
-        self.max_message_size = int(params.pop("max_message_size", 31457280))
+        self.max_message_size = int(params.pop("max_message_size", 52428800))
         self.delete_mails_after = params.pop("delete_mails_after", "20")
         self.delete_large_after = params.pop("delete_large_after", "7")
         self.delete_inactive_users_after = int(

chatmaild/src/chatmaild/ini/chatmail.ini.f

@@ -22,7 +22,7 @@ mail_domain = {mail_domain}
 #max_mailbox_size = 500M
 
 # maximum message size for an e-mail in bytes
-#max_message_size = 31457280
+#max_message_size = 52428800
 
 # days after which mails are unconditionally deleted
 #delete_mails_after = 20

cmdeploy/src/cmdeploy/pins.py

@@ -1,14 +1,14 @@
 """Versions, hashes, and download URLs for pre-built artifacts fetched during deploy."""
 
-FILTERMAIL_VERSION = "v0.7.7"
+FILTERMAIL_VERSION = "v0.7.4"
 FILTERMAIL_ARTIFACTS = {
     "x86_64": (
         f"https://github.com/chatmail/filtermail/releases/download/{FILTERMAIL_VERSION}/filtermail-x86_64",
-        "0691debf501f854f4e6a9dd6516f3a0ef03d95721a9b540309014bfe1a1f52b1",
+        "484cb8dff083134aefba9fce4a6b7ef4784a0f0e28e5108ecf8bb9e58a44fd2c",
     ),
     "aarch64": (
         f"https://github.com/chatmail/filtermail/releases/download/{FILTERMAIL_VERSION}/filtermail-aarch64",
-        "964f85df8b65b812666113f968cbfdd8da88ce16d218284deb359c1e2400d2da",
+        "66aa0ca2ca9add7a12d92883d76f8786384092adfde24a3d3a1d0b1f30d23a9e",
     ),
     "mtail": (
         f"https://raw.githubusercontent.com/chatmail/filtermail/{FILTERMAIL_VERSION}/contrib/filtermail.mtail",