On Fri, Jun 04, 2010 at 11:41:43AM +1000, Paul McGougan wrote:
> 1. I compose an email from an email account that is hosted on my
> limedomains service to an email account that is also hosted on my
> limedomains service (it could be the same or a different account as the
> FROM account, it doesn't appear to matter).
What is your MUA? What SMTP submission service are you using?
> 2. I press send in my email client which sends to my local ISP smtp server
Not a good idea, since you are composing email purportedly from the hosted
domain, but sending it from the ISP, so the hosted domain, this looks like
sender domain forgery. You should use an MUA configuration for sending
such email that uses the hosting provider's SMTP submission service
(assuming they have port 587 + TLS + SASL support).
> 3. My local ISP smtp server tries to deliver the email to the
> limedomains server
That's where things may get complicated...
> 4. The limedomains server rejects the email, and my local ISP smtp
> server sends me a bounce with the following message:
Sure enough...
> : host mail.limedomains.net[64.90.182.179] said: 553 5.7.1 : Sender
> address rejected: not logged in (in reply to RCPT TO command)
The ISP has implemented "reject_sender_login_mismatch" on their MX host,
which I guess also does double duty as a submission service. Or perhaps
they are actively seeking to preclude forgery.
> If I send the message TO the same person using the same local ISP smtp
> server but use a FROM address that is not hosted at limedomains then the
> email is delivered successfully.
>
> Does anyone have any suggestions?
See above.
--
Viktor.
