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Is IP 213.120.69.121 [mailomta28-re.btinternet.com] a PlusNet server?

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SilverE
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Registered: ‎22-09-2016

Is IP 213.120.69.121 [mailomta28-re.btinternet.com] a PlusNet server?

I have had an email sent through relay.plus.net rejected by Gmail as my SPF does not include IP 213.120.69.121. This is using my personal domain. My spf record has 

v=spf1 include:_spf-internal.plus.net include:_spf-internal2.plus.net ~all

but Gmail has rejected an email which came from IP 213.120.69.121 [mailomta28-re.btinternet.com] which is not listed in the include lists. Should it? 

I had been using the madasafish include (for some historic reason) which also does not include it. My first thought was that it's a new PlusNet server (being part of BT) and should be included.

But possibly not: I was sending to a btinternet.com address which looks as if it is forwarded to a gmail address, so quite possibly btinternet.com is breaking the SPF, not setting up SRS properly. In which case I can't fix it from my end. Has anyone else seem a similar rejection?

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SilverE
Grafter
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Registered: ‎22-09-2016

Re: Is IP 213.120.69.121 [mailomta28-re.btinternet.com] a PlusNet server?

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Updating - my correspondent tells me this is not unusual - so it looks very much like a btinternet failure. I can send directly to his gmail address to walk round this in future.

MisterW
Superuser
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Re: Is IP 213.120.69.121 [mailomta28-re.btinternet.com] a PlusNet server?

so quite possibly btinternet.com is breaking the SPF, not setting up SRS properly

I'm afraid its quite common for email forwarding systems not to implement SRS and thus fail any SPF checking

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

SilverE
Grafter
Posts: 41
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Registered: ‎22-09-2016

Re: Is IP 213.120.69.121 [mailomta28-re.btinternet.com] a PlusNet server?

Apparently Gmail only randomly checks SPF so my emails must have escaped this (for this regular correspondent) up to now. 

MisterW
Superuser
Superuser
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Re: Is IP 213.120.69.121 [mailomta28-re.btinternet.com] a PlusNet server?

https://support.google.com/a/answer/174124?hl=en

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.