50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
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# blitiri.com.ar/go/spf
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[](https://pkg.go.dev/blitiri.com.ar/go/spf)
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[](https://gitlab.com/albertito/spf/-/pipelines)
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[](https://goreportcard.com/report/github.com/albertito/spf)
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[](https://coveralls.io/github/albertito/spf)
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[spf](https://godoc.org/blitiri.com.ar/go/spf) is an open source
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implementation of the [Sender Policy Framework
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(SPF)](https://en.wikipedia.org/wiki/Sender_Policy_Framework) in Go.
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It is used by the [chasquid](https://blitiri.com.ar/p/chasquid/) and
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[maddy](https://maddy.email) SMTP servers.
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## Example
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```go
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// Check if `sender` is authorized to send from the given `ip`. The `domain`
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// is used if the sender doesn't have one.
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result, err := spf.CheckHostWithSender(ip, domain, sender)
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if result == spf.Fail {
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// Not authorized to send.
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}
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```
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See the [package documentation](https://pkg.go.dev/blitiri.com.ar/go/spf) for
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more details.
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## Status
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All SPF mechanisms, modifiers, and macros are supported.
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The API should be considered stable. Major version changes will be announced
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to the mailing list (details below).
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## Contact
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If you have any questions, comments or patches please send them to the mailing
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list, `chasquid@googlegroups.com`.
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To subscribe, send an email to `chasquid+subscribe@googlegroups.com`.
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You can also browse the
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[archives](https://groups.google.com/forum/#!forum/chasquid).
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