hi, I'm new to postfix and am trying to setup a new backup mx server to another postfix server hosting hundreds of domains. I've got it working, receiving mail ( testing from cli using telnet ) and forwarding it to the main server, but using squirrelmail to look at the mail on server, the from address is unknown, if I use the pop3 connector from gmail to collect the mail from the server, then in gmail I get the to address in the from field, and a blank to address. but everything looks fine in the logs. telnet send mail: 220 mail3.scl.co.uk ESMTP Postfix (Ubuntu) EHLO gmail.com 250-mail3.scl.co.uk 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN mail from: [email protected] 250 2.1.0 Ok rcpt to:[email protected] 250 2.1.5 Ok data 354 End data with <CR><LF>.<CR><LF> subject: new relay test test relay from mail3 . 250 2.0.0 Ok: queued as B5BFF6444C quit 221 2.0.0 Bye backup mx server log: Mar 26 15:25:11 dr1 postfix/smtpd[6199]: connect from 84-45-154-103.static.enta.net[84.45.154.103] Mar 26 15:25:28 dr1 postfix/smtpd[6199]: B5BFF6444C: client=84-45-154-103.static.enta.net[84.45.154.103] Mar 26 15:25:50 dr1 postfix/cleanup[6208]: B5BFF6444C: message-id=<> Mar 26 15:25:50 dr1 postfix/qmgr[5536]: B5BFF6444C: from=<redacted@gmail.com>, size=241, nrcpt=1 (queue active) Mar 26 15:25:50 dr1 postfix/smtp[6205]: B5BFF6444C: to=<redacted@scl.co.uk>, relay=mail.scl.co.uk[213.146.180.232]:25, delay=30, delays=29/0/0.28/0.11, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 60F5C35E5) Mar 26 15:25:50 dr1 postfix/qmgr[5536]: B5BFF6444C: removed Mar 26 15:25:55 dr1 postfix/smtpd[6199]: disconnect from 84-45-154-103.static.enta.net[84.45.154.103] main server log: Mar 26 15:25:50 mail postfix/smtpd[24245]: connect from unknown[46.101.50.214] Mar 26 15:25:50 mail postgrey[1121]: action=pass, reason=triplet found, client_name=unknown, client_address=46.101.50.214, [email protected], [email protected] Mar 26 15:25:50 mail postfix/smtpd[24245]: 60F5C35E5: client=unknown[46.101.50.214] Mar 26 15:25:50 mail postfix/cleanup[24852]: 60F5C35E5: message-id=<> Mar 26 15:25:50 mail postfix/qmgr[2980]: 60F5C35E5: from=<redacted@gmail.com>, size=414, nrcpt=1 (queue active) Mar 26 15:25:50 mail postfix/smtpd[24245]: disconnect from unknown[46.101.50.214] Mar 26 15:25:50 mail postfix/virtual[22438]: 60F5C35E5: to=<redacted@scl.co.uk>, relay=virtual, delay=0.11, delays=0.1/0/0/0.01, dsn=2.0.0, status=sent (delivered to maildir) Mar 26 15:25:50 mail postfix/qmgr[2980]: 60F5C35E5: removed postconf -n : append_dot_mydomain = no biff = no config_directory = /etc/postfix html_directory = /usr/share/doc/postfix/html inet_interfaces = all inet_protocols = all mailbox_size_limit = 0 maximal_queue_lifetime = 30d mydestination = myhostname = mail3.scl.co.uk mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 readme_directory = /usr/share/doc/postfix recipient_delimiter = + relay_domains = mysql:/etc/postfix/mysql_domains.cf relay_recipient_maps = relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated reject_un auth_destination smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes transport_maps = hash:/etc/postfix/transportmaps squirrelmail headers: Return-Path: <redacted@gmail.com>X-Original-To: redacted@scl.co.uk Delivered-To: redacted@scl.co.uk Received: from mail3.scl.co.uk (unknown [46.101.50.214]) by mail.scl.co.uk (Postfix) with ESMTP id 60F5C35E5 for <redacted@scl.co.uk>; Thu, 26 Mar 2015 15:25:50 +0000 (GMT) Received: from gmail.com (84-45-154-103.static.enta.net [84.45.154.103]) by mail3.scl.co.uk (Postfix) with ESMTP id B5BFF6444C for <redacted@scl.co.uk>; Thu, 26 Mar 2015 15:25:20 +0000 (GMT) subject: new relay test gmail view: new relay test redacted@scl.co.uk 15:54 (1 minute ago) to test relay from mail3 gmail headers: Delivered-To: redacted@sclinternet.co.uk Received: by 10.229.29.3 with SMTP id o3csp570347qcc; Thu, 26 Mar 2015 08:55:03 -0700 (PDT) X-Received: by 10.55.55.8 with SMTP id e8mr31081724qka.9.1427385273233; Thu, 26 Mar 2015 08:54:33 -0700 (PDT) Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning [email protected] does not designate 46.101.50.214 as permitted sender) [email protected] Received-SPF: softfail (google.com: domain of transitioning redacted@gmail.com does not designate 46.101.50.214 as permitted sender) client-ip=46.101.50.214; Message-ID: <[email protected]> Received: by 10.140.92.117 with POP3 id a108mf2711027qge.1; Thu, 26 Mar 2015 08:54:33 -0700 (PDT) X-Gmail-Fetch-Info: [email protected] 1 mail.scl.co.uk 110 [email protected] Return-Path: <[email protected]> X-Original-To: [email protected] Delivered-To: [email protected] Received: from mail3.scl.co.uk (unknown [46.101.50.214]) by mail.scl.co.uk (Postfix) with ESMTP id 60F5C35E5 for <[email protected]>; Thu, 26 Mar 2015 15:25:50 +0000 (GMT) Received: from gmail.com (84-45-154-103.static.enta.net [84.45.154.103]) by mail3.scl.co.uk (Postfix) with ESMTP id B5BFF6444C for <[email protected]>; Thu, 26 Mar 2015 15:25:20 +0000 (GMT) subject: new relay test Date: Thu, 26 Mar 2015 08:54:33 -0700 (PDT) From: [email protected] i know i still need to sort out the tls, i'll do that once I've got this problem fixed. does anyone know why the to/from fields are getting messed up in the mail client?, and how do i fix it? at the moment i don't have any idea where to even start on this one. thanks. lee.