RFC 5321 » History » Version 2
Vyacheslav Mukhortov, 2025-12-03 21:23
| 1 | 2 | Vyacheslav Mukhortov | *RFC 5321* - https://datatracker.ietf.org/doc/html/rfc5321 p. 4.5.3.1.1-4.5.3.1.3 |
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| 2 | see also: https://datatracker.ietf.org/doc/html/rfc5322 p. 3.4.1. |
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| 3 | |||
| 4 | <pre> |
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| 5 | 4.5.3.1.1. Local-part |
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| 6 | |||
| 7 | The maximum total length of a user name or other local-part is 64 |
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| 8 | octets. |
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| 9 | |||
| 10 | 4.5.3.1.2. Domain |
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| 11 | |||
| 12 | The maximum total length of a domain name or number is 255 octets. |
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| 13 | |||
| 14 | 4.5.3.1.3. Path |
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| 15 | |||
| 16 | The maximum total length of a reverse-path or forward-path is 256 |
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| 17 | octets (including the punctuation and element separators). |
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| 18 | </pre> |