# RFC 1653: SMTP Service Extension for Message Size Declaration

> request for comments publication

**Wikidata**: [Q47457960](https://www.wikidata.org/wiki/Q47457960)  
**Source**: https://4ort.xyz/entity/rfc-1653-smtp-service-extension-for-message-size-declaration


## References

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