diff --git a/Milter/dns.py b/Milter/dns.py
index 67bed03..e4a9751 100644
--- a/Milter/dns.py
+++ b/Milter/dns.py
@@ -26,8 +26,8 @@ def DNSLookup(name, qtype):
# A RR as dotted quad. For consistency, this driver should
# return both as binary string.
return [((a['name'], a['typename']), a['data']) for a in resp.answers]
- except IOError, x:
- raise DNSError, str(x)
+ except IOError as x:
+ raise DNSError(str(x))
class Session(object):
"""A Session object has a simple cache with no TTL that is valid
diff --git a/Milter/dsn.py b/Milter/dsn.py
index 021d9d2..b27f749 100644
--- a/Milter/dsn.py
+++ b/Milter/dsn.py
@@ -142,13 +142,13 @@ def send_dsn(mailfrom,receiver,msg=None,timeout=600,session=None,ourfrom=''):
if badrcpts:
return badrcpts
return None # success
- except smtplib.SMTPRecipientsRefused,x:
+ except smtplib.SMTPRecipientsRefused as x:
if len(x.recipients) == 1:
return x.recipients.values()[0] # permanent error
return x.recipients
- except smtplib.SMTPSenderRefused,x:
+ except smtplib.SMTPSenderRefused as x:
return x.args[:2] # does not accept DSN
- except smtplib.SMTPDataError,x:
+ except smtplib.SMTPDataError as x:
return x.args # permanent error
except smtplib.SMTPException:
pass # any other error, try next MX