# RFC 1891: SMTP Service Extension for Delivery Status Notifications

> request for comments publication

**Wikidata**: [Q47298285](https://www.wikidata.org/wiki/Q47298285)  
**Source**: https://4ort.xyz/entity/rfc-1891-smtp-service-extension-for-delivery-status-notifications


## References

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