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Orange (orange.fr and wanadoo.fr)

OFR_425: sender domain blacklisted

Orange refused your mail because your sender domain is blacklisted by Abusix or Spamhaus. The listing has to be removed at that list.

Orange
Provider
Sources checked
By , email deliverability consultant
Author

At a glance

Code
OFR_425
Who has to act
The sender. The fix is on the sending side: your domain, your server or your list.

What it means

Code 425 is the domain counterpart of the IP codes 100 and 101. Orange found your sender domain on the Abusix or the Spamhaus blocklist and refused the mail. The resolution is to look the domain up at both, lookup.abusix.com and check.spamhaus.org, see which list holds it and why, and follow that list removal process. Orange advises checking the domain as well as the IP regularly, so a listing is caught before your mail starts bouncing.

Common causes

  • The domain was used in spam, by you or by someone forging it.
  • Links to the domain appeared in spam.
  • The domain is new and shares traits these lists associate with abuse.

How to fix it

  1. 01Look the domain up at lookup.abusix.com and check.spamhaus.org.
  2. 02Fix the cause given and request removal from the list that holds it.
  3. 03Protect the domain with SPF, DKIM and DMARC to make forging it harder.

Sources

What this page rests on, checked on 20 Oct 2026. The explanation is ours; the reply text is the server's.

  1. OFR_100Sending IP listed by Abusix.Orange refused your mail because your sending IP is listed on the Abusix blocklist. The listing has to be checked and removed at Abusix.Orange
  2. OFR_101Sending IP listed by Spamhaus.Orange refused your mail because your sending IP is listed by Spamhaus. Check the listing at Spamhaus and have it removed there.Orange
  3. 550Sender domain on a Spamhaus blocklist.GMX refused your mail because your envelope or From domain is listed on a Spamhaus blocklist. GMX makes no exceptions; the listing must be removed at Spamhaus.GMX, WEB.DEPermanent

Further reading

All 20 Orange codesEvery code in the wikiPaste your own bounce

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A heartbeat for your email.

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example.comWatching
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