Checking the email queue via SSH will allow you to acquire valuable information. For instance, a high email queue may be the reason your server is experiencing high load.
Use this command to find the number of emails in the queue
exim -bpc
Example:
root@fakeserver.dizinc.com(~)$ exim -bpc 58
Use this command to see the number of emails in the queue and print out their name, destination, and source:
exim -bp
Example:
root@hostdime.com(~)$ exim -bp 7h 1.2K 1Vno3b-0003ia-Es <accubarc@hostdime.com> eth.anl.q2.53@hostdime.com 7h 1.2K 1Vno40-0003lZ-09 <accubarc@hostdime.com> yul.e.vw.nd.13.5@hostdime.com 7h 1.8K 1Vno7L-00040C-8I <stackpl@hostdime.com> (stackpl) certificates@hostdime.com 6h 1.2K 1Vnoo5-00009h-9b <accubarc@hostdime.com> louisesmarting1@hostdime.com 5h 1.5K 1VnpaB-0005Cx-GE <mailman-bounces@hostdime.com> Ozzie@hostdime.com 4h 1.9K 1Vnqgn-0003kg-F5 <stackpl@hostdime.com> (stackpl) training@hostdime.com
Finding email header information:
Use this command to find the headers of a particular message. Note that ID below should be replaced with the actual message ID:
exim -Mvh ID
Example:
root@hostdime.com.com(~)$ exim -Mvh 1Vno7L-00040C-8I 1Vno7L-00040C-8I-H stackpl 32194 32407 <stackpl@hostdime.com> 1386069975 0 -ident stackpl -received_protocol local -body_linecount 27 -max_received_linelength 171 -auth_id stackpl -auth_sender stackpl@dime41.dizinc.com -allow_unqualified_recipient -allow_unqualified_sender -local -sender_set_untrusted XX 1 certificates@hostdime.com 208P Received: from stackpl by hostdime.com with local (Exim 4.80.1) (envelope-from <stackpl@hostdime.com>) id 1Vno7L-00040C-8I for certificates@hostdime.com; Tue, 03 Dec 2013 06:26:15 -0500 018 Mime-Version: 1.0 025 Content-Type: text/plain 047 X-Boxtrapper: v5R_7JXbwciJ_3TVyryf1_oPeKjGFXb8 048 X-Autorespond: v5R_7JXbwciJ_3TVyryf1_oPeKjGFXb8 023 Precedence: auto_reply 025 X-Precedence: auto_reply 014* From: stackpl 039T To: certificates@hostdime.com 083 Subject: Your email requires verification verify#TUPgMGzJgkB7aFdbZ5228-1386069975) 035F From: <stackpl@hostdime.com> 050I Message-Id: <E1Vno7L-00040C-8I@hostdime.com> 038 Date: Tue, 03 Dec 2013 06:26:15 -0500
Use this command to find the body of a particular message. ID below is the actual message ID:
exim -Mvh ID
Example:
root@hostdime.com(~)$ exim -Mvb 1Vno7L-00040C-8I 1Vno7L-00040C-8I-D The message you sent requires that you verify that you are a real live human being and not a spam source. To complete this verification, simply reply to this message and leave the subject line intact or click the link below: https://www.hostdime.com/cgi-sys/bxd.cgi?a=stackpl&id=TUPgMGzJgkB7aFdbZ5228-1386069975 The headers of the message sent from your address are shown below: From Certificates@hostdime.comTue Dec 03 06:26:15 2013 Received: from hostdime.com ([64.34.206.128]:16852) by hostdime.com with esmtp (Exim 4.80.1) (envelope-from <Certificates@hostdime.com>) id 1Vno7K-0003zt-GA for sandra@hostdime.com; Tue, 03 Dec 2013 06:26:14 -0500 Received: by hostdime.com id hjmvtc1o0n8s for <sandra@hostdime.com>; Mon, 2 Dec 2013 22:20:42 -0500 (envelope-from <Certificates@hostdime.com>) Date: Mon, 02 Dec 2013 22:20:42 -0500 X-Sender: Certificates@hostdime.com To: sandra@hostdime.com From: Certificates for Compliance <Certificates@hostdime.com> Subject: Certificate Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=====================_1734012==_"