postfix problem with talktalk?
Tony Nelson
tonynelson at georgeanelson.com
Tue May 29 02:56:45 UTC 2007
At 10:19 AM +0930 5/29/07, Tim wrote:
>Paul Ward:
>>>> As for google mail accepting mail from root they do, I use it all
>>>> the time on my server, good for denyhosts ;)
>
>Tim:
>>> Hmm, interesting that they do. Most don't accept bogus domains, it
>>> helps cut down on spam. But, on your system that isn't working, now,
>>> are you sending via the same SMTP server? It's not just the end
>>> recipient that *might* refuse fake domains, it's all the SMTP servers
>>> it goes through.
>
>Paul Ward:
>> That would make sense as his setup is the same as mine, apart from the
>> internet provider he uses, talktalk are a real pain so I would not be
>> suprised if they were blocking it.
>
>To be honest, it's the normal thing to do (block mail with bogus
>domains). In the past, I would have argued that was a good thing, as
>it'd cut down on spammers. Now, with spammers forging *other* people's
>details, so not to get blocked, I think we'd be better off with a
>different approach.
>
>> Is there a way around faking the mail to look like it came from
>> another one of his email addresses?
>
>Yes, though it's not something that I've done. With sendmail, it's
>"masquerade" options in the configuration. I don't know how postfix
>handles it. An easy solution is to have a real domain name, and
>configure your system to use it.
His system may already have a real domain name, albeit an ugly one derived
from his IP address. He can find it with "dig -x xxx.xxx.xxx.xxx". Mine
is pool-68-239-45-247.bos.east.verizon.net, as can be seen from my emails.
--
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' <http://www.georgeanelson.com/>
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