Email test deferred (mail transport unavailable) with ClamAV

email postfix dovecot clamav

11,615

Found the problems:

There is a whitespace before the scan unix line.
There should be a linebreak between the -o disable_dns_lookups=yes and 127.0.0.1:10026 lines.

Correct format:

# Must begin with NO SPACES
scan unix -       -       n       -       16       smtp
   -o smtp_data_done_timeout=1200
   -o smtp_send_xforward_command=yes
   -o disable_dns_lookups=yes

# New Line
127.0.0.1:10026 inet n       -       n       -       16       smtpd
   -o content_filter=
   -o local_recipient_maps=
   -o relay_recipient_maps=
   -o smtpd_restriction_classes=
   -o smtpd_client_restrictions=
   -o smtpd_helo_restrictions=
   -o smtpd_sender_restrictions=
   -o smtpd_recipient_restrictions=permit_mynetworks,reject
   -o mynetworks_style=host
   -o smtpd_authorized_xforward_hosts=127.0.0.0/8

11,615

Brock Hensley

Computer whisperer; Programmer for life; Systems Administrator for hire. Hard-earned valuable experience in IT versed in Linux and Windows, web hosting, design and programming. Detail oriented, creative in problem solving and experienced in designing custom solutions working with clients and executives of all levels and backgrounds. Passionate about new technologies, surmounting unique challenges and accomplishing goals. Programming C#, C++, .NET, PowerShell, WebAPI, MVC, MVVM, WPF, HTML, CSS, jQuery, jQueryUI, Telerik, Kendo, Knockout, TSQL, PHP, Perl, Bash, VIM, VB, BASIC Operating Systems Windows Server (2000-2016), Linux (Red Hat, CentOS, OpenSuSe, Debian, Slackware, FreeBSD, etc.) Web Servers IIS (6-10), Apache (1.3-2.4) Database Servers Microsoft SQL Server (2000-2016), MySQL (3.23-5.6) Hardware Dell PowerEdge Blade Servers, WatchGuard Firewalls, Cisco Routers, KVM/IPMI Microsoft Technologies Active Directory, Clustering, Load Balancing, Application Request Routing, Hyper-V, SharePoint, Exchange, Office Other NESSUS, Snort, McAfee, Symantec, Backup for Workgroups, Continuous Data Protection, Photoshop, AutoCAD, Mechanical Desktop, Maya, Lightwave, 3D Studio Max AWARDS/CERTIFICATES MCITP - Windows Server 2008, Server Administrator (646) MCTS - Microsoft SQL Server 2008, Implementation and Maintenance (432) MCTS - Windows Server 2008 Network Infrastructure, Configuring (642) MCTS - System Center Virtual Machine Manager 2008, Configuring (403) MCTS - Windows Server Virtualization, Configuration (652) MCTS - Windows Server 2008 Active Directory, Configuration (640) MCTS - Microsoft Server 2003 Hosting, Configuration and Management (501) MCTS - Microsoft Windows Vista, Configuration (620) MCP - Installing, Configuring, and Administering Microsoft Windows XP Professional (270) Security+ Certified

Updated on September 18, 2022

Comments

Brock Hensley over 1 year
I'm trying to set up a simple new mail server; when I send a test email to the server the email is getting hung up during delivery (user mapping is found) and the email is never found in /home/user/Maildir/new

Here is my maillog after a fresh reboot and test email, there are a few warnings I am unfamiliar with.

Can you please point me in the right direction?

Oct 25 14:54:57 loki dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled)

Oct 25 14:54:58 loki postfix/postfix-script[1369]: starting the Postfix mail system Oct 25 14:54:58 loki postfix/master[1370]: daemon started -- version 2.6.6, configuration /etc/postfix

Oct 25 14:56:00 loki postfix/tlsmgr[1457]: warning: request to update table btree:/etc/postfix/smtpd_scache in non-postfix directory /etc/postfix

Oct 25 14:56:00 loki postfix/tlsmgr[1457]: warning: redirecting the request to postfix-owned data_directory /var/lib/postfix

Oct 25 14:56:00 loki postfix/smtpd[1455]: connect from mail-ob0-f180.google.com[209.85.214.180]

Oct 25 14:56:01 loki postfix/smtpd[1455]: 1CF5E20A8B: client=mail-ob0-f180.google.com[209.85.214.180]

Oct 25 14:56:01 loki postfix/cleanup[1461]: 1CF5E20A8B: message-id=

Oct 25 14:56:01 loki postfix/qmgr[1379]: 1CF5E20A8B: from=, size=1788, nrcpt=1 (queue active)

Oct 25 14:56:01 loki postfix/qmgr[1379]: warning: connect to transport private/scan: No such file or directory

Oct 25 14:56:01 loki postfix/error[1462]: 1CF5E20A8B: to=, orig_to=, relay=none, delay=0.18, delays=0.15/0.02/0/0.01, dsn=4.3.0, status=deferred (mail transport unavailable)

Oct 25 14:56:01 loki postfix/smtpd[1455]: disconnect from mail-ob0-f180.google.com[209.85.214.180]

master.cf snippets:
```
# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (100)
# ==========================================================================
smtp      inet  n       -       n       -       -       smtpd
submission inet n       -       n       -       -       smtpd
  -o smtpd_tls_security_level=encrypt
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
smtps     inet  n       -       n       -       -       smtpd
  -o smtpd_tls_wrappermode=yes
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING


 scan unix -       -       n       -       16       smtp
   -o smtp_data_done_timeout=1200
   -o smtp_send_xforward_command=yes
   -o disable_dns_lookups=yes 127.0.0.1:10026 inet n       -       n       -       16       smtpd
   -o content_filter=
   -o local_recipient_maps=
   -o relay_recipient_maps=
   -o smtpd_restriction_classes=
   -o smtpd_client_restrictions=
   -o smtpd_helo_restrictions=
   -o smtpd_sender_restrictions=
   -o smtpd_recipient_restrictions=permit_mynetworks,reject
   -o mynetworks_style=host
   -o smtpd_authorized_xforward_hosts=127.0.0.0/8
```