I've seen a lot of clients' outbound mail rejected in the last 12
months due to SPF issues; particularly mail being delivered to
secureMX, or Xtra. The plan of attack was usually:
1. do they appear on any RBL's? (self explanatory, I know, just
thought I'd list it)
2. does the HELO ID of their server match the MX record for the domain?
3. does the MX record (and HELO ID) contain the terms 'smtp' or
'mail'? (strange I know, but it's made a difference)
4. does a PTR record exist for the mail server's FQDN?
5. does the domain have a valid SPF record?
If all these criteria are met, you really shouldn't have any problems
passing go & collecting $200.
Love,
Simon W
On 22 July 2010 17:22, Mark Wakefield
On 22/07/10 16:36, Regan Murphy wrote:
It appears that safegas.co.nz have their mail configured to come via hosts.net.nz, and their on-premise mail server is enforcing SPF which should break for anyone sending them email.
MX records for domain safegas.co.nz Your 1 MX records are: 10 mta.hosts.net.nz ip=210.48.108.65
mail.safegas.co.nz is W3's server (rua.w3host.co.nz) so they're going to be the ones to sort it out.
W3 should also look at putting a firewall in front of that server...
Mark _______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog
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