On 10/13/2010 10:49 AM, James Wilde wrote:
...
> <[email protected]>:
> 195.74.36.190 failed after I sent the message.
> Remote host said: 550 5.7.1 Your message seems to be Spam and WILL NOT be 
> delivered. ID: b7b15530-cb25-11df-9a0c-005056a12c00

I was getting similar 550 5.7.1 bounces from my ISP. But I figure out
the cause; when I was sending mailing list subscribe messages without
any text in the message body they were getting bounced. When I added a
few words they went through just fine. So perhaps there was an upgrade
on spam detection software overall. Mine were like this:
<emailaddress>: Recipient address rejected:
Mail appears to be spam or forged and is rejected due to policy. Correct
your HELO or DNS MX settings and get removed from DNSBLs; please relay
via your ISP (sbcglobal.net)


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