[Pythonmac-SIG] problems with smtplib?

[Doug Wyatt]

At 21:37 +0200 10/21/99, Just van Rossum wrote:
> At 3:02 PM -0400 10/21/99, chris mann wrote:
>>I'm having problems with the smtplib module on Mac.
>>
>>if I run the following code on windows or linux it works fine, but fails on
>>mac:
>>import smtplib
>>s = smtplib.SMTP('smtp.myhost.com')
>>s.helo()
>>
>>i get the following error:
>>Traceback (innermost last):
>>  File "<input>", line 1, in ?
>>  File "Dev:Scripting:Python 1.5.2c1:Lib:smtplib.py", line 290, in helo
>>    name=socket.gethostbyaddr(socket.gethostname())[0]
>>error: host not found
>>
>>any ideas why this is only failing on Mac?
>
> Works for me. Can it be your network setup? Firewall?
> Can you see which of the two socket calls fail?

I have the same problem.

>>> socket.gethostname()
'10.9.8.81'
>>> socket.gethostbyaddr(socket.gethostname())
Traceback (innermost last):
   File "<input>", line 1, in ?
error: host not found

My machine does not have a name known to the outside world because, 
indeed, I am behind an IP masquerading firewall.

So I changed smtplib.ehlo() as follows:

			name = socket.gethostname()
			try:
				name = socket.gethostbyaddr(name)[0]
			except:
				pass

Sorry, I should have posted this fix when I made it.

Doug

-- 
Doug Wyatt                             doug@sonosphere.com
http://www.sonosphere.com/