RFC 7504: SMTP 521 and 556 Reply Codes (Q47479767)
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- RFC7504
- SMTP 521 and 556 Reply Codes
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | No label defined |
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| English | RFC 7504: SMTP 521 and 556 Reply Codes |
request for comments publication |
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