Hi guys, i am using ubuntu 20.04 according to the perfect server with ispconfig 3 I have problems with an ip which is rejected from icloud. Code: May 8 20:02:18 server6 postfix/smtp[2048808]: C5F34A20D33: host mx01.mail.icloud.com[17.57.156.24] refused to talk to me: 554 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=144.91.80.244 May 8 20:02:20 server6 postfix/smtp[2048808]: C5F34A20D33: host mx01.mail.icloud.com[17.57.155.24] refused to talk to me: 554 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=144.91.80.244 May 8 20:02:21 server6 postfix/smtp[2048808]: C5F34A20D33: host mx02.mail.icloud.com[17.57.155.25] refused to talk to me: 554 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=144.91.80.244 May 8 20:02:21 server6 postfix/smtp[2048808]: C5F34A20D33: host mx02.mail.icloud.com[17.57.152.14] refused to talk to me: 554 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=144.91.80.244 May 8 20:02:22 server6 postfix/smtp[2048808]: C5F34A20D33: to=<[email protected]>, relay=mx02.mail.icloud.com[17.42.251.12]:25, delay=4.5, delays=0.34/0/4.1/0, dsn=4.7.0, status=deferred (host mx02.mail.icloud.com[17.42.251.12] refused to talk to me: 554 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=144.91.80.244) when i check the ip its its only on one blacklist (dnsbl-3.uceprotect.net) all other looks good, but icloud does not accept the ip. would it be better to move the domain to another server or use another ip to send the email? i checked the logfiles and there is no outgoing spam the server looks good without any problems. as well i get an error from the domain where i send the email some times: Code: ay 8 20:43:54 server6 postfix/smtpd[2051079]: NOQUEUE: reject: RCPT from mta-253-213-92.wix.com.sparkpostmail.com[147.253.213.92]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mta-253-213-92.wix.com.sparkpostmail.com> May 8 20:43:59 server6 postfix/smtpd[2051079]: disconnect from mta-253-213-92.wix.com.sparkpostmail.com[147.253.213.92] ehlo=2 starttls=1 mail=1 rcpt=0/1 quit=1 commands=5/6 is relay access denied a bad configuration of postfix? thanks for your big help
If you read the message, it clearly directs you to something helpful: "see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=144.91.80.244" So that's the DNSBL that you are on. Request removal there.
