More specific error in SMTPBackend.send. Fixes #60

emails/backend/smtp/backend.py

@@ -1,14 +1,15 @@
 # encoding: utf-8
 from __future__ import unicode_literals
-
-__all__ = ['SMTPBackend', ]
-
 import smtplib
 import logging
 from functools import wraps
 from ..response import SMTPResponse
 from .client import SMTPClientWithResponse, SMTPClientWithResponse_SSL
 from ...utils import DNS_NAME
+from .exceptions import SMTPConnectNetworkError
+
+
+__all__ = ['SMTPBackend']
 
 logger = logging.getLogger(__name__)
 
@@ -85,16 +86,20 @@ class SMTPBackend:
 
     def _send(self, **kwargs):
 
+        response = None
         try:
             client = self.get_client()
-        except (IOError, smtplib.SMTPException) as exc:
-            logger.exception("Error connecting smtp server")
+        except IOError as exc:
+            response = self.make_response(exception=SMTPConnectNetworkError.from_ioerror(exc))
+        except smtplib.SMTPException as exc:
             response = self.make_response(exception=exc)
+
+        if response:
             if not self.fail_silently:
                 response.raise_if_needed()
             return response
-
-        return client.sendmail(**kwargs)
+        else:
+            return client.sendmail(**kwargs)
 
     def sendmail(self, from_addr, to_addrs, msg, mail_options=None, rcpt_options=None):
 

emails/backend/smtp/exceptions.py

@@ -0,0 +1,15 @@
+# encoding: utf-8
+from __future__ import unicode_literals
+import socket
+
+
+class SMTPConnectNetworkError(IOError):
+    """Network error during connection establishment."""
+
+    @classmethod
+    def from_ioerror(cls, exc):
+        o = cls()
+        o.errno = exc.errno
+        o.filename = exc.filename
+        o.strerror = exc.strerror
+        return o

emails/testsuite/loader/test_loaders.py

@@ -169,7 +169,6 @@ def test_external_urls():
 
     success = 0
     for url in [
-                'https://github.com/lavr/python-emails',
                 'http://yandex.com',
                 'http://www.smashingmagazine.com/'
                 ]: