La Poste
La Poste is a public-owned French postal company that also provides @laposte.net addresses to French residents. They have strict SPF, DKIM & DMARC requirements to reduce the amount of spam, similar to Gmail and Yahoo.
Links
Domains
- laposte.net
Codes
- 521↑
521 5.7.1 Service unavailable LPN007_102
La Poste has blocked your IP for being in a blacklist. This code is usually associated with poor Validiy Sender Score reputation. Use the link below to check your Sender Score reputation and request a review.
- 550↑
550 5.7.1 Suspicion de contenu non sollicite. Afin de preserver la qualite du service et limiter les volumes de spam sur la plateforme, ce message n'a pas ete transmis. Likely unsolicited email. LPN007_510
La Poste has determined your messages are unsolicited, so your message was rejected. Contact their team to get more details about the reason behind the block.
550 5.7.20 Message refuse, DKIM n'est pas configure sur votre domaine d'expedition. Message refused, DKIM is not configured on your sending domain. LPN007_402
The message does not have a DKIM signature, or, none of the DKIM signatures is aligned with the domain in the RFC5322.From header. Contact your email provider to setup DKIM correctly with a signature on your domain.