Correspondence Exchange

This is a mail server. It is not a web site: there is nothing here for a visitor to use.

Mail leaving this domain is signed cryptographically. The domain’s DNS holds records listing the servers allowed to send on its behalf, and telling receiving systems what to do with a message that fails the check. If a message fails it, it did not come from here — whatever is written in the sender field. Do not trust such a message.

This server accepts mail only for the addresses it serves. It is not an open relay: an attempt to pass a message from one outside sender to another is refused at once, while the connection is still open. Bulk mailings are not sent from here.

Delivering a message inevitably leaves a record: from whom, to whom, when it arrived, and whether it was accepted. Such records are kept for a limited period and are needed to run the service, to deal with abuse reports and to find faults. They are used for nothing else and given to nobody else, except where the law requires it. Message contents are not read or analysed beyond what delivery and spam filtering require.

Report spam, or a message forging a sender address in this domain, to abuse@correspondence.exchange. A vulnerability — security@correspondence.exchange. A message that was delayed, refused or returned — postmaster@correspondence.exchange. Attach the whole message together with its headers: without them a report usually cannot be processed.

Security contacts are also published in the RFC 9116 format: /.well-known/security.txt.