> one of web.de's sender IPs is listed into zen.spamhaus.org as the following > info. > > 554 5.7.1 Service unavailable; Client host [82.165.159.35] blocked using z > en.spamhaus.org; https://www.spamhaus.org/sbl/query/SBL175032
Try to send your email via web.de (browser), which might use servers with better reputation. See https://postmaster.web.de/en/email-server Mails classified as spam or external forwards seemingly take another route via mout-xforward.web.de. These servers are SBL-listed by intention, most likely because the spam probability is higher in this context. This separation helps mout.web.de to maintain a better reputation. Only web.de can tell why your email was routed that way. > $ dig -x 82.165.159.35 +short > mout-xforward.web.de. > > Can anyone from web.de help with this? The mail operators' list is better suited for this kind of question as an alternative to the contact form link provided by Viktor: https://www.mailop.org/ Best regards Gerald _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org