You saw a connection from us. Here is what it was.
If your logs show 78.138.0.182 or a HELO of
probe.danisflow.online, it was an address verification check against your MX.
It issued RCPT TO and then QUIT. It did not issue
DATA, so nothing was delivered and there is no message to find.
Common log lines, explained
| What you saw | What it was |
|---|---|
A session that ended after RCPT TO |
Normal and intended. The answer to RCPT TO is the entire purpose of the connection. |
| Two connections close together from the same address | The first offers one deliberately invalid local part to find out whether your server accepts every address; the second checks the real one. See address verification. |
MAIL FROM:<> with an empty sender |
The null reverse-path from RFC 5321 §4.5.5. Used because it cannot be replied to and cannot deliver. |
| Something else entirely, claiming to be us | Not us. Our only host and address are listed on the infrastructure page. Please tell us. |
To stop it
Any of these work, and none of them need our cooperation. We do not attempt to work around a block, and we do not change addresses to evade one.
- Refuse the connection at your edge. Blocking
78.138.0.182is sufficient and we will read the refusal correctly. - Answer
550to ourRCPT TO. We record it and move on. - Email abuse@danisflow.online with your domain and we will add it to a permanent exclusion list — no explanation required and no reply asking you to reconsider.
A request to stop is not negotiated. We would rather lose a domain than argue with the person who runs its mail server. If you have asked and it continues, that is a fault on our side and we want to know: postmaster@danisflow.online.
If a person at your domain was written to
Verification and outreach are separate systems on separate domains. Messages come from
danisflow.com, and every one carries an unsubscribe path. For removal of a
person's details from our records altogether — not just from mailings — see
data and removal, which is the request with teeth.
Reaching a human
| Abuse reports, block requests | abuse@danisflow.online |
|---|---|
| Technical questions, misconfiguration | postmaster@danisflow.online |
Both are read by a person, not a ticket queue that closes itself.