chore(deps): Upgrade filtermail to v0.7.3

## 0.7.3 - 2026-06-27

### Features

- *(transport)* Worker eviction
## 0.7.2 - 2026-06-26

### Documentation

- *(readme)* Disable colors in mermaid diagrams
- *(readme)* Update Transport mode doc

### Features

- *(transport)* Destination worker pool

### Refactor

- Implement Display for AddressDomain

### Testing

- Test filtermail-transport

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>

.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/v0.7.1/filtermail-x86_64 -o /usr/local/bin/filtermail && chmod +x /usr/local/bin/filtermail
+        run: curl -L https://github.com/chatmail/filtermail/releases/download/v0.7.3/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

README.md

@@ -8,7 +8,12 @@ Chatmail relay servers are interoperable Mail Transport Agents (MTAs) designed f
 -  **Instant/Realtime:** sub-second message delivery, realtime P2P
    streaming, privacy-preserving Push Notifications for Apple, Google, and Huawei;
 
--  **Security Enforcement**: only strict TLS, DKIM and OpenPGP with minimized metadata accepted
+-  **Security Enforcement**: Only connections with strict TLS are accepted;
+   all messages must be correctly signed with DKIM and OpenPGP-encrypted with minimized metadata.
+   There are experimental exceptions for no-DNS relays,
+   which are allowed use self-signed TLS certificates
+   and which do not need to DKIM-sign their messages.
+   Unencrypted messages are allowed in neither case.
 
 -  **Reliable Federation and Decentralization:** No spam or IP reputation checks, federating
    depends on established IETF standards and protocols.

cmdeploy/src/cmdeploy/filtermail/deployer.py

@@ -20,10 +20,10 @@ class FiltermailDeployer(Deployer):
             return
 
         arch = host.get_fact(facts.server.Arch)
-        url = f"https://github.com/chatmail/filtermail/releases/download/v0.7.1/filtermail-{arch}"
+        url = f"https://github.com/chatmail/filtermail/releases/download/v0.7.3/filtermail-{arch}"
         sha256sum = {
-            "x86_64": "fc2d8141166f8561b9711fb68c5327fc9421f814c46dc69671a4605a95b175c0",
+            "x86_64": "bd4be15b27199909a44499cacf23e634249219f8cd715e5ce707de7eb711d7d9",
-            "aarch64": "37e52c5ddb373ef29b5ead89658407c53f48d10ce055a2dbd9c606fa1ebd5f7f",
+            "aarch64": "a13038b5ca421c3b2c4c4aa50dbc3c8c4de6f9aaa877a05c0ec978b131550c6b",
         }[arch]
         self.download_executable(url, self.bin_path, sha256sum)