I have a client wich cannot send mail to a particular email address ([email protected]) The error is like this: Dec 14 15:59:29 web1 postfix/smtp[15910]: 80D3B16B809F: to=<[email protected]>, relay=mail.destination.tld[xx.xx.xx.170]:25, delay=1993, delays=1973/0.01/1.2/19, dsn=4.0.0, status=deferred (host mail.destination.tld[xx.xx.xx.170] said: 451 SPF lookup failure (#4.3.0) (in reply to MAIL FROM command)) the senders domain file looks like this: $TTL 86400 @ IN SOA xx.xxx.135.92. admin.sender.tld. ( 2007121402 ; serial, todays date + todays serial # 28800 ; refresh, seconds 7200 ; retry, seconds 604800 ; expire, seconds 86400 ) ; minimum, seconds ; NS xx.xxx.135.92. ; Inet Address of name server 1 NS xx.xxx.135.91. ; Inet Address of name server 2 ; mx MX 10 mail.sender.tld. sender.tld. A xx.xxx.166.10 www A xx.xxx.166.10 ftp A xx.xxx.166.10 mail A xx.xxx.166.10 pop3 CNAME mail.sender.tld. smtp CNAME mail.sender.tld. sender.tld. TXT "v=spf1 a mx ptr ~all" ;;;; MAKE MANUAL ENTRIES BELOW THIS LINE! ;;;; xx.xxx.135.92 is ns1 xx.xxx.135.91 is ns2 xx.xxx.166.10 is the machine on wich clients are (ispconfig) all other mail seems to work fine (only this email destination is with problem) i forgot to mention: [root@web1 named]# [root@web1 named]# host -t txt destination.tld destination.tld descriptive text "v=spf1 a mx ~all" [root@web1 named]# host -t txt mail.destination.tld mail.destination.tld descriptive text "v=spf1 a -all" [root@web1 named]# host -t txt sender.tld sender.tld descriptive text "v=spf1 a mx ptr ~all" Thank you in advance
yes of course, this is the sender. (client on ispconfig). he has an email account on that domain. and that's his SPF settings. i believe that the ispconfig's default seting for all clients.
I've checked that domain, and everything seems to be fine. I guess it's a misconfiguration on the remote mailserver then...
