10.4.3 release: bump mailsuite floor to >=2.3.1 (#876)

mailsuite 2.3.1 fixes mailsuite.utils.parse_email() raising TypeError
instead of ValueError("Not an email") on unparseable (non-email) input
under mail-parser 4.6.2 (seanthegeek/mailsuite#61), which parsedmarc's
floors have required since 10.4.2.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 10.4.3
+
+### Changes
+
+- **Bumped the `mailsuite` floor to `>=2.3.1`**, picking up the fix for `mailsuite.utils.parse_email()` raising `TypeError` instead of `ValueError("Not an email")` on unparseable (non-email) input under mail-parser 4.6.2 and later ([seanthegeek/mailsuite#61](https://github.com/seanthegeek/mailsuite/issues/61)) — a potential crash for anything reading non-email files through that API. mail-parser 4.6.2 changed its contract for unparseable input (it now returns a header-less parse result instead of the input string), so mailsuite's not-an-email detection never fired and parsing crashed on the missing `From` header. Every install of the previous parsedmarc release shipped the affected combination, because mailsuite 2.3.0 — the floor since parsedmarc 10.4.2 — itself requires mail-parser `>=4.6.2`. parsedmarc's own CLI and library report parsing never call that mailsuite API; they use parsedmarc's separate `parse_email` implementation, which rejects non-email input gracefully and behaves identically under both mailsuite versions, so this bump removes the affected combination from installs rather than fixing a parsedmarc crash.
+
 ## 10.4.2
 
 ### Changes

parsedmarc/constants.py

@@ -1,4 +1,4 @@
-__version__ = "10.4.2"
+__version__ = "10.4.3"
 
 USER_AGENT = f"parsedmarc/{__version__}"
 

pyproject.toml

@@ -50,7 +50,7 @@ dependencies = [
     "httpx>=0.25",
     "kafka-python>=2.3.2",
     "lxml>=4.4.0",
-    "mailsuite[gmail,msgraph]>=2.3.0",
+    "mailsuite[gmail,msgraph]>=2.3.1",
     "maxminddb>=2.0.0",
     # Imported directly in cli.py for Graph error handling; otherwise
     # only a transitive dep of mailsuite[msgraph] -> msgraph-sdk.