# RFC 2034: SMTP Service Extension for Returning Enhanced Error Codes

> request for comments publication

**Wikidata**: [Q47462971](https://www.wikidata.org/wiki/Q47462971)  
**Source**: https://4ort.xyz/entity/rfc-2034-smtp-service-extension-for-returning-enhanced-error-codes


## References

1. RFC Index
2. DBLP Dataset 2021-01-02