Catch more specific OSError instead of SMTPException in dnf-automatic email emitter

Resolves: RHEL-49743

0031-smtplib-catch-OSError-not-SMTPException.patch

@@ -0,0 +1,33 @@
+From ea2d17cc484c7c49686145f4b2e98e4b73b9c967 Mon Sep 17 00:00:00 2001
+From: Evan Goode <mail@evangoo.de>
+Date: Mon, 13 Mar 2023 14:50:41 -0400
+Subject: [PATCH] smtplib: catch OSError, not SMTPException
+
+Some, but not all, types of connection error are caught by smtplib and
+reraised as an smtplib.SMTPException. Notably, TimeoutError,
+socket.gaierror (name resolution failure), and ConnectionRefusedError
+and are not caught.
+
+The more generic OSError should be caught here instead.
+
+Resolves #1905
+---
+ dnf/automatic/emitter.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/dnf/automatic/emitter.py b/dnf/automatic/emitter.py
+index 4aea4b02..648f1a1d 100644
+--- a/dnf/automatic/emitter.py
++++ b/dnf/automatic/emitter.py
+@@ -106,7 +106,7 @@ class EmailEmitter(Emitter):
+             smtp = smtplib.SMTP(self._conf.email_host, timeout=300)
+             smtp.sendmail(email_from, email_to, message.as_string())
+             smtp.close()
+-        except smtplib.SMTPException as exc:
++        except OSError as exc:
+             msg = _("Failed to send an email via '%s': %s") % (
+                 self._conf.email_host, exc)
+             logger.error(msg)
+-- 
+2.46.1
+

dnf.spec

@@ -69,7 +69,7 @@ It supports RPMs, modules and comps groups & environments.
 
 Name:           dnf
 Version:        4.14.0
-Release:        18%{?dist}
+Release:        19%{?dist}
 Summary:        %{pkg_summary}
 # For a breakdown of the licensing, see PACKAGE-LICENSING
 License:        GPLv2+
@@ -105,6 +105,7 @@ Patch27:        0027-Add-detection-for-ostree-based-systems-and-warn-user.patch
 Patch28:        0028-Update-ostree-bootc-host-system-check.patch
 Patch29:        0029-Update-bootc-hosts-message-to-point-to-bootc-help.patch
 Patch30:        0030-Allow-installroot-on-read-only-bootc-system.patch
+Patch31:        0031-smtplib-catch-OSError-not-SMTPException.patch
 
 
 BuildArch:      noarch
@@ -394,6 +395,10 @@ popd
 %{python3_sitelib}/%{name}/automatic/
 
 %changelog
+* Mon Oct 07 2024 Marek Blaha <mblaha@redhat.com> - 4.14.0-19
+- Catch more specific OSError instead of SMTPException in dnf-automatic email
+  emitter (RHEL-49743)
+
 * Tue Oct 01 2024 Petr Pisar <ppisar@redhat.com> - 4.14.0-18
 - More specific error message on a locked OSTree system or a bootc system
   without a usr-overlay (RHEL-49670)