slightly improved email processing

rowers/management/commands/processemail.py

@@ -98,6 +98,7 @@ class Command(BaseCommand):
         cntr = 0
         for attachment in attachments:
             extension = attachment.document.name[-3:].lower()
+            try:
                 message = Message.objects.get(id=attachment.message_id)
                 body = "\n".join(message.text.splitlines())
                 uploadoptions = uploads.upload_options(body)
@@ -108,6 +109,8 @@ class Command(BaseCommand):
                 rowers = [
                     r for r in Rower.objects.all() if r.user.email.lower() == from_address
                 ]
+            except IOError:
+                rowers = []
             for rower in rowers:
                 if extension == 'zip':
                     zip_file = zipfile.ZipFile(attachment.document)