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  • Postfix - suspend domain from which deferred status was received?

    - by Al Bundy
    Is there a possibility to make Postfix stop trying (for a period of time) to send emails to a domain from which it received a deferred response? Currently my Postfix goes through each address in the queue. Please see the below example. At 09:48:32 the status=deferred appears. After this Postfix should stop trying to send stuff to the yahoo.com domain. Jun 6 09:48:20 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37163, delays=36519/638/1.2/4.9, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:20 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37163, delays=36519/638/1.2/4.9, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:20 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37163, delays=36519/638/1.2/4.9, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:30 mailer postfix/smtp[8643]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[63.250.192.46]:25, delay=37173, delays=36519/645/1.4/7.4, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:30 mailer postfix/smtp[8643]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[63.250.192.46]:25, delay=37173, delays=36519/645/1.4/7.4, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:30 mailer postfix/smtp[8643]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[63.250.192.46]:25, delay=37173, delays=36519/645/1.4/7.4, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:30 mailer postfix/smtp[8643]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[63.250.192.46]:25, delay=37173, delays=36519/645/1.4/7.4, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:30 mailer postfix/smtp[8643]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[63.250.192.46]:25, delay=37173, delays=36519/645/1.4/7.4, dsn=2.0.0, status=sent (250 ok dirdel 5/0) Jun 6 09:48:32 mailer postfix/smtp[8644]: C779A233C0: host mta6.am0.yahoodns.net[98.138.112.38] said: 421 4.7.0 [TS01] Messages from x.x.x.250 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html (in reply to MAIL FROM command) Jun 6 09:48:32 mailer postfix/smtp[8644]: C779A233C0: lost connection with mta6.am0.yahoodns.net[98.138.112.38] while sending RCPT TO Jun 6 09:48:33 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37176, delays=36519/655/2.5/0.18, dsn=4.7.0, status=deferred (host mta7.am0.yahoodns.net[98.138.112.35] said: 421 4.7.0 [TS01] Messages from x.x.x.250 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html (in reply to MAIL FROM command)) Jun 6 09:48:33 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37176, delays=36519/655/2.5/0.18, dsn=4.7.0, status=deferred (host mta7.am0.yahoodns.net[98.138.112.35] said: 421 4.7.0 [TS01] Messages from x.x.x.250 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html (in reply to MAIL FROM command)) Jun 6 09:48:34 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37176, delays=36519/655/2.5/0.18, dsn=4.7.0, status=deferred (host mta7.am0.yahoodns.net[98.138.112.35] said: 421 4.7.0 [TS01] Messages from x.x.x.250 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html (in reply to MAIL FROM command)) Jun 6 09:48:34 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37176, delays=36519/655/2.5/0.18, dsn=4.7.0, status=deferred (host mta7.am0.yahoodns.net[98.138.112.35] said: 421 4.7.0 [TS01] Messages from x.x.x.250 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html (in reply to MAIL FROM command)) Jun 6 09:48:34 mailer postfix/smtp[8644]: C779A233C0: to=<[email protected]>, relay=mta7.am0.yahoodns.net[98.138.112.35]:25, delay=37176, delays=36519/655/2.5/0.18, dsn=4.7.0, status=deferred (host mta7.am0.yahoodns.net[98.138.112.35] said: 421 4.7.0 [TS01] Messages from x.x.x.250 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html (in reply to MAIL FROM command)) Jun 6 09:48:34 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37177, delays=36519/658/0/0.07, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:34 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37177, delays=36519/658/0/0.18, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:34 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37177, delays=36519/658/0/0.35, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:34 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37177, delays=36519/658/0/0.4, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:34 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37177, delays=36519/658/0/0.46, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:35 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37179, delays=36519/660/0/0.16, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:35 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37179, delays=36519/660/0/0.22, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:36 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37179, delays=36519/660/0/0.31, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO) Jun 6 09:48:36 mailer postfix/error[8661]: C779A233C0: to=<[email protected]>, relay=none, delay=37179, delays=36519/660/0/0.36, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.35] while sending RCPT TO)

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  • direct url to server ip address and port

    - by AM0
    We have a Windows 2012 dedicated server. There’s a custom service running on port xxxxx which accepts connections from our custom built hardware devices over TCP/IP port. As of now we use servername.serverdomain.com:xxxxx to connect to the service and start communication. However, we prefer to use URL instead of server’s name or IP Address. So we got a custom url and set its name servers to point to dedicated server. However, just setting DNS doesn’t seem to be working. Could someone please guide as to how to get it working? UPDATE In short I want www.custom-url.com being forwarded to servername.serverdomain.com:xxxxx. These requests are coming from hardware and not browser.

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  • how to block spammer using my mailserver

    - by fike
    how to defend my mailserver using by spammer to send email to etc yahoomail , gmail , etc my mail server now blocked by gmail. already setting to block of all that but still attacked by spammers below log mail:- Jun 24 03:29:26 abcd sendmail[13373]: q5NHV7Jm001938: to=, ctladdr= (525/528), delay=02:58:10, xdelay=00:00:02, mailer=esmtp, pri=3212216, relay=mta7.am0.yahoodns.net. [67.195.168.230], dsn=431, stat=Deferred: 452 Too many recipients I really appreciate for the advice and assistance .

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  • Connection Timed Out - Simple outbound Postfix for PHP Contact form

    - by BLaZuRE
    Alright, so I only got Postfix for a PHP contact form that will send email to a single . I only want it to send out mail to a single external address ([email protected]). I have domain sub1.sub2.domain.com. I installed Postfix out of the Ubuntu repo, with minimal config changes. I cannot get Postfix to send mail externally (though it succeeds for internal accounts, which is unnecessary). The email simply defers if I generate an email using PHP mail(). If I try to form my own in telnet, right after rcpt to: [email][email protected][/email], I get a postfix/smtpd[31606]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 550 5.1.1 <[email protected]>: Recipient address rejected: example.com; from=<root@localhost> to=<[email protected]> proto=ESMTP helo=<localhost> when commenting out default_transport = error and relay_transport = error lines, I get the following: Jun 26 14:33:00 sub1 postfix/smtp[12191]: 2DA06F88206A: to=<[email protected]>, relay=none, delay=514, delays=409/0.01/105/0, dsn=4.4.1, status=deferred (connect to aspmx3.googlemail.com[74.125.127.27]:25: Connection timed out) Jun 26 14:36:36 sub1 postfix/smtp[12225]: connect to mta7.am0.yahoodns.net[98.139.175.224]:25: Connection timed out Jun 26 14:38:00 sub1 postfix/smtp[12225]: 22952F88208E: to=<[email protected]>, relay=none, delay=655, delays=550/0.01/105/0, dsn=4.4.1, status=deferred (connect to mta5.am0.yahoodns.net[67.195.168.230]:25: Connection timed out) My main.cf # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = sub1.sub2.domain.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = sub1.sub2.domain.com, localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all default_transport = error relay_transport = error Also, a dig sub1.sub2.domain.com MX returns: ; <<>> DiG 9.7.0-P1 <<>> sub1.sub2.domain.com MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4853 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;sub1.sub2.domain.com. IN MX ;; AUTHORITY SECTION: sub2.domain.com. 600 IN SOA sub2.domain.com. sub5.domain.com. 2012062915 7200 600 1209600 600 ;; Query time: 0 msec ;; SERVER: x.x.x.x#53(x.x.x.x) ;; WHEN: Fri Jun 29 16:35:00 2012 ;; MSG SIZE rcvd: 84 lsof -i returns empty netstat -t -a | grep LISTEN returns tcp 0 0 localhost:mysql *:* LISTEN tcp 0 0 *:ftp *:* LISTEN tcp 0 0 *:ssh *:* LISTEN tcp 0 0 localhost:ipp *:* LISTEN tcp 0 0 *:smtp *:* LISTEN tcp6 0 0 [::]:netbios-ssn [::]:* LISTEN tcp6 0 0 [::]:www [::]:* LISTEN tcp6 0 0 [::]:ssh [::]:* LISTEN tcp6 0 0 localhost:ipp [::]:* LISTEN tcp6 0 0 [::]:microsoft-ds [::]:* LISTEN

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  • Postfix message ID originating process?

    - by Anders Braüner Nielsen
    Last night my postfix mail server(Debian Squeeze with dovecot, roundcube, opendkim and spamassassin enabled) started sending out spam from a single domain of mine like these: $cat mail.log|grep D6930B76EA9 Jul 31 23:50:09 myserver postfix/pickup[28675]: D6930B76EA9: uid=65534 from=<[email protected]> Jul 31 23:50:09 myserver postfix/cleanup[27889]: D6930B76EA9: message-id=<[email protected]> Jul 31 23:50:09 myserver postfix/qmgr[7018]: D6930B76EA9: from=<[email protected]>, size=957, nrcpt=1 (queue active) Jul 31 23:50:09 myserver postfix/error[7819]: D6930B76EA9: to=<[email protected]>, relay=none, delay=0.03, delays=0.02/0/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta5.am0.yahoodns.net[66.196.118.33] while sending RCPT TO) The domain in question did not have any accounts enabled but only a catchall alias set through postfixadmin - most emails were send from a specific address I use frequently but some were also sent from bogus addresses. None of the other virtual domains handled by postfix were affected. How can I find out what process was feeding postfix/sendmail or more info on where they originated? As far as I can tell php mail() wasn't used and I've run several open relay tests. I did a little tinkering(removed winbind from the server and ipv6 addresses from main.cf) after the attack and it seems to have subsided but I still have no idea how my server was suddenly sending out spam. Maybe I fixed it - maybe I didn't. Can anyone help figuring out how I was compromised? Anywhere else I should look? I've run Linux Malware Detect on recently changed files but nothing found.

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