我有一个python脚本,每天定期使用smtplib发送几组电子邮件(不同的地址与不同的内容)。比较频繁(比如说同时发送多个电子邮件的批次大约是1/5),我得到一个IOError(errno:broken pipe)。我尝试重新设置并退出SMTP服务器,然后再次连接到服务器并尝试重新发送,但如果第一次失败(具有相同的例外),则总是失败。 SMTP服务器由大学维护,并且应该可靠(并且只要您在Intranet上就允许登录电子邮件)。间歇性smtp断开的管道(errno 32)
忽略下面的代码(缺乏DRY)的丑陋,任何人都可以建议一个更可靠的方法来连接?
我创建一个名为EmailSet类将发送一批具有成员函数send_emails几个电子邮件:
class EmailSet(object):
...
def send_emails(self):
try: # Connect to server
server = smtplib.SMTP(smtp_server_name_str, 25)
server.set_debuglevel(self.verbose)
server.ehlo()
for email in self.email_set:
try: # send 1st mail
logging.debug("Sending email to %r" % email.recipients)
response_dict = server.sendmail(email.fromaddr, email.recipients, email.msg_str())
logging.info("Sent email to %r" % email.recipients)
except Exception as inst:
logging.error('RD: %r' % response_dict)
logging.error("Email Sending Failed")
logging.error("%r %s" % (type(inst), inst))
try: # send second mail
logging.info("Second Attempt to send to %r" % email.recipients)
try:
server.rset()
server.quit()
except:
pass
time.sleep(60) # wait 60s
server = smtplib.SMTP(smtp_server_name_str, 25)
server.set_debuglevel(self.verbose)
server.ehlo()
response_dict = server.sendmail(email.fromaddr, email.recipients, email.msg_str())
logging.info("Sent email to %r (2nd Attempt)" % email.recipients)
except Exception as inst:
try:
logging.error('RD: %r' % response_dict)
except:
pass
logging.error("Second Attempt Email Sending Failed")
except:
logging.debug("Can't connect to server")
finally:
logging.debug("Reseting and Quitting Server")
server.rset()
server.quit()
logging.debug("Successfully Quit Server")
return True
如何进行调试这有什么想法? stmp服务器不是由我维护的,但应该维护良好(用于约10k人组织)。我最初在发送每封电子邮件后连接并断开与smtpserver的连接,但这比此方法产生更多的错误。
同时使用/ usr/sbin/sendmail而不是smtplib会更安全吗?