Email notifications?
Originally Posted by slo4g63
I wasn't getting them either but noticed somehow my email notifications had changed..... adjusted and now all is well.
Time to check up on my subscribions manualy.
Ok, I looked into this a little bit and I think I know what is going on.
Some ISPs are using reverse lookup to match the email address to server names. For instance an email sent by "help@my350z.com" is coming from 69.80.198.27, and the forward lookup of mail.my350z.com shows 69.80.198.27but a reverse lookup is unsuccessful. So any server doing reverse lookup as a verification will deny delivery. The way this would need to be fixed is to call the ISP and have them add mail.my350z.com to their PTR records in the ISP DNS (not my350z.com's DNS).
Next is SPF, I noticed recently Hotmail and Yahoo are doing SPF lookups now. This is a text entry in the my350z.com domain DNS. Following this wizard can build the text string that would need to be entered http://www.openspf.org/wizard.html?mydomain=my350z.com
From my limited investigation into this, my350z has neither revers lookup or SPF, so either could be issues. By the way, my limited investigation was a visit to mxtoolbox.com, a handy tool for any email admin. This was the results of running their tests.
10 mail.my350z.com 69.80.198.27 7200
No valid SPF version 1 records found for my350z.com
Banner: 240z.zdriver.com ESMTP Sendmail 8.13.1/8.13.1; Wed, 3 May 2006 15:33:52 -0700 [156 ms]
Connect Time: 0.172 seconds - Good
Transaction Time: 0.688 seconds - Good
Relay Check: OK - This server is not an open relay.
Rev DNS Check: Reverse DNS FAILED! This is a problem.
Hope this helps whoever has the power to change things.
Chris
Some ISPs are using reverse lookup to match the email address to server names. For instance an email sent by "help@my350z.com" is coming from 69.80.198.27, and the forward lookup of mail.my350z.com shows 69.80.198.27but a reverse lookup is unsuccessful. So any server doing reverse lookup as a verification will deny delivery. The way this would need to be fixed is to call the ISP and have them add mail.my350z.com to their PTR records in the ISP DNS (not my350z.com's DNS).
Next is SPF, I noticed recently Hotmail and Yahoo are doing SPF lookups now. This is a text entry in the my350z.com domain DNS. Following this wizard can build the text string that would need to be entered http://www.openspf.org/wizard.html?mydomain=my350z.com
From my limited investigation into this, my350z has neither revers lookup or SPF, so either could be issues. By the way, my limited investigation was a visit to mxtoolbox.com, a handy tool for any email admin. This was the results of running their tests.
10 mail.my350z.com 69.80.198.27 7200
No valid SPF version 1 records found for my350z.com
Banner: 240z.zdriver.com ESMTP Sendmail 8.13.1/8.13.1; Wed, 3 May 2006 15:33:52 -0700 [156 ms]
Connect Time: 0.172 seconds - Good
Transaction Time: 0.688 seconds - Good
Relay Check: OK - This server is not an open relay.
Rev DNS Check: Reverse DNS FAILED! This is a problem.
Hope this helps whoever has the power to change things.
Chris
Originally Posted by ZU L8R
why did this happen all of a sudden?
I use Brighthouse networks( RR) Matt I know you do as well.
What ISP is everyone useing that is experirenceing this problem?
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