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Postfix SMTP Server Job Cost Overview

Typical total cost of Upwork Postfix SMTP Server projects based on completed and fixed-price jobs.

Upwork Postfix SMTP Server Jobs Completed Quarterly

On average, 14 Postfix SMTP Server projects are completed every quarter on Upwork.


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Time needed to complete a Postfix SMTP Server project on Upwork.

Average Postfix SMTP Server Freelancer Feedback Score

Postfix SMTP Server Upwork freelancers typically receive a client rating of 4.80.

Last updated: October 1, 2015

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Daniel Yavorovich

Daniel Yavorovich

System Administrator

Ukraine - Portfolio: 1

Operating Systems ● FreeBSD ● Linux Security ● iptables ● openssl ● jail ● clamav ● mod_security ● mod_clamav DNS ● Bind ● PowerDNS (+PostgreSQL / +MySQL) HTTP ● Apache ○ MPM: prefork, worker ○ mod_ssl, mod_php, mod_wsgi ● Nginx ○ Access control ○ Autoindex ○ Fast-CGI ○ uWSGI ○ Proxy ○ Cache ○ SSL ○ upload_progress_module ○ Control panel integration ■ Virtualmin ■ DirectAdmin ■ Plesk Proxy ● squid ○ basic auth ○ transparent proxy ○ cache ● 3proxy ○ http/socks ○ auth Raid ● Linux ○ md(0,1,5,6,10) ● FreeBSD ○ Gmirror / Striping File Systems: ● Ext 2,3,4 ● ReiserFS ● XFS ● OCFS2 ● ZFS (port to FreeBSD) ● CEPH CVS ● SVN ● Mercurial ● GIT ○ GitLab ○ GitoLite Backup ● rsync ● BackupPC ● Bacula FTP ● ProFTPd ● VSFTPD File sharing ● NFS ● SAMBA Control Panel ● Direct Admin ● Webmin+Virtualmin ● CPanel ● ISP-config ● Plesk Automatization ● Puppet ● Saltstack Monitoring ● Zabbix ● Nagios ● Munin ● Monit Network Understanding of theoretical and practical foundations of the networks (Data link, Network, Transport, Application Layers). VPN ● OpenVPN ● PPTP Database (SQL) ● MySQL (+MariaDB, +Percona) ● PostgreSQL Database (NoSQL) ● ElasticSearch ● Riak ● MongoDB ● Cassandra ● Redis Virtualization & Containerization ● KVM ● XEN ● OpenVZ ● LXC ● Docker ● Vagrant Cluster ● DRBD ○ master-slave ○ master-master (+ocfs2) ● Heartbeat ● Pacemaker Development ● actively use: ○ shell (bash, sh) ○ Python ● Frameworks ○ Django ○ Flask ○ Twisted ○ Tornado Cloud Solutions: ● AWS (EC2, S3, CloudFront, Route53) ● DigitalOcean ● RackSpace

100% Job Success
$33.33 /hr
46 hours

Scott Blaydes

Scott Blaydes

Linux/BSD/Unix Systems Administrator.

United States - Tests: 4 - Portfolio: 1

## BIO Over 20 years experience in IT. Seventeen years experience as Systems/Network Administrator for Internet Service Providers. Designed and implemented networks, including WANs, LANs utilizing wired and wireless technologies. Provided server administration for production SaaS website and eCommerce sites, including PCI DSS security compliance. ## Area of Expertise Operating Systems: Linux, FreeBSD, OpenBSD, RedHat, CentOS, Debian, Ubuntu, OpenSuSE, Windows Server (2000-2008). Routers: Mikrotik, Linux, low-end Cisco, soho routers. Networking: wireless, wired, LAN, WAN, switches, cabling. Server Software: Apache, sendmail, postfix, DNS, bind, dovecot, courier, email, mail server, pop3, imap, Wordpress, Joomla, bash, shell scripting.

100% Job Success
$20.00 /hr
1,383 hours

Denis Lemeshko

Denis Lemeshko

Unix Administrator


I have large experience in: * Linux/FreeBSD maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu), * Networking (dhcp, DNS:bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), * Web servers (apache, nginx, lighttpd), * Mail servers (exim, postfix, antispam/ antivirus: clamav/spamassassin, dovecot), * Bulk marketing (Dkim, spf, high speed/inboxing, interspire), * Automation (perl/shell/awk scripting), * Monitoring (nagios, zabbix), * Hosting panels (ISPmanager).

$11.11 /hr
0 hours

Alexander M.

Alexander M.

Software Developer C++/Qt

Ukraine - Tests: 2 - Portfolio: 5

Software Engineer with 10+ years of diverse experience in software development, systems administration, and database administration. Developer of the opensource report solution CuteReport:

$45.00 /hr
1,307 hours

Jayson Cena

Jayson Cena Agency Contractor

Linux(Debian/Red Hat),Oracle DBA, Linux Cluster Admin,Virtualization-H

Philippines - Tests: 4

To obtain a position that will enable me to experience and learn new ideas on system administration like complicated enterprise infrastructure design specially high-availability and fault-tolerant infrastructres. My core competency lies in designing new system infrastructure using open-source software. I also have some experience in VB6, ASP, PHP.

Associated with: ClusterFoundry Agency

$26.67 /hr
1,137 hours

Yevgeniy Korin

Yevgeniy Korin

Network administrator/*nix Administrator

Ukraine - Tests: 5

Strong knowledge in networking and *nix-system administration. I specialize in Cisco, HP, Mikrotik network devices. I have worked with: Cisco - ISR 800, 1900, 2900, 3900 Series; ASA 5500 Series; WLC. HP - 2920, MSM 775 and AP 430/460. Mikrotik - RB750*, RB951*. My skills: - Mail Servers: Exim, Zimbra (Postfix) - *nix Systems: FreeBSD, Debian, Ubuntu - Netwroking Services: VPN, DNS, DHCP, NTP, FTP - Routing and Switching/Firewall: Static/Dynamic Routing, VLAN, STP, VRRP/HSRP, NAT - Monitoring: Zabbix - Proxy: Squid

89% Job Success
$20.00 /hr
36 hours

Maxim Putilin

Maxim Putilin

System Administrator (AWS/LAMP/Windows/Linux/DevOps/Clouds)

Ukraine - Tests: 4 - Portfolio: 4

Expert in AWS, server infrastructure migration, monitoring and securing, LAMP, Windows and Linux Servers setup and administration (including HA and clustering), DevOps. 100% positive feedbacks. I have 7 years of team work experience as system administrator. I'm quick learner who enjoy learning and mastering bleeding edge technologies and improvement of professional knowledge, self-motivated and self-organized. Have experience in deploying and maintaining of: Cloud Computing Platforms: Amazon Web Services (EC2, S3, RDS, VPC, Elastic Beanstalk etc); DevOps tools: Vagrant, Chef; Server operating systems: Ubuntu Server, CentOS, Windows Server 2003 - 2012R2, Amazon Linux, Debian, RHEL; Web servers and servlets containers: IIS, apache, tomcat, JBoss, IBM Websphere; Mail servers: postfix, MS Exchange, IIS SMTP, hMailServer, cyrus; Database servers: MySQL, MS SQL, Oracle DB, PostgreSQL, MongoDB, DB2; Virtualization: MS Hyper-V, MS Virtual Server, VMware Server, Xen Server, VirtualBox, OpenVZ; Directory service: Active Directory, OpenLDAP; Ticketing systems: mantis, jira, redmine, trac, freshdesk, trello; File servers: IIS FTP, proftpd, FileZilla FTP Server, samba; Firewalls: ufw, Windows firewall, iptables, firewalls on MikroTik and other routers; IT Infrastructure Monitoring: nagios, Pingdom; Webhosting Control Panels: WHM/cPanel, Webmin, Directadmin, plesk; Proxy Servers: squid; VPN Servers: pptpd; Collaboration version control systems: git, svn, cvs; Clustering: MySQL on DRBD, Heartbeat, MongoDB Replication, RabbitMQ; Continuous integration systems: Hudson/Jenkins, Apache Continuum; Instant messaging servers: ejabberd; Message brokers: RabbitMQ (include clustering); Customer Relationship Management Systems: MS CRM, Odoo/OpenERP; Enterprise Content Management Systems: MS SharePoint, EMC Documentum, OpenText LiveLink, Lotus Notes, Oracle Content Database and Oracle Records Database; Rapid web application development platforms: Adobe ColdFusion.

93% Job Success
$19.00 /hr
150 hours

Arnaud B.

Arnaud B.

Linux admin & Opensource Integration specialist


17+ years in computing. Working daily with linux since 1998. Familiar with web and technical/complex architectures. Freelancer since 2004. Operating systems : Linux (redhat, centos, debian, ubuntu), packaging (RPM, deb) Programming languages : Perl, PHP, Unix Shell, SQL Infrastructure tools : Email (postfix, exim) , SNMP, nagios, cacti, LDAP, Network tools : Web servers (apache, lighttpd,..), TCP/IP, DNS (BIND), Haproxy, NGINX, LVS, VPN,... Web techniques : Cloud, Web clusters and high availabiity techniques

$55.00 /hr
0 hours

Offshoreit Support

Offshoreit Support Agency Contractor

CEO and Founder

India - Tests: 3 - Portfolio: 1

Offshore IT Support is a leading Technical Support Company that provides Outsourced 24/7 Technical Support, Remote Server Administration, Server Security, Linux/Windows Server Management, Server Audit and Helpdesk Management to Datacenters, Hosting companies and ISPs around the globe. With over 5 years experience in working with major hosting providers and data centers, Offshore IT Support is the first company of its kind who provides “Expert Call Back” feature to the customers. I have well rounded knowledge and hands-on experience in the following areas: Windows Servers Win 2003, Win 2008, MSSQL Server, IIS , Azure, Apache, IIS, Amazon Web Services, Dedicated Server, VPS. WHMCS. Linux configuration, maintenance & troubleshooting for RHEL, Centos, Debian, Ubuntu Virtualization: Vmware, Openvz, Virtuozzo, Xen, KVM, vserver, Cloud hosting: Amazon EC2, AWS, S3, Cloud Computing, Digital Ocean, VPS, Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables, proxies), Web servers (apache, nginx, lighttpd, tomcat), Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin, courier, dovecot), Hosting panels as Cpanel/WHM, Plesk, Directadmin, WebsitePanel.Webmin, DirectAdmin, Virtualmin & Vestacp SSL Certificates : Symantec, Digital certs, Go daddy. Verisign Thwart etc... Networking: Active Directory,Group Policy, DNS, DHCP, FTP, VPN, NFS, RAID, DHCP, DNS, DFS, VPN, WDS, RRAS, TS server, NAP, Proxy server, Windows Failover clustering,Network Load Balancing (NLB), Remote Desktop Services. Storage: Configure NAS and SAN, Openfiler NAS/SAN, Starwind SAN. Backup: R1 Soft, Windows NT Backup, Shadow Protect, Configure and troubleshoot the backup issues. CCNA: IP addressing sub-netting, IP Routing Routing Protocol, EIGRP, OSPF, ACL, Frame Relay connection, NAT/PAT, Virtual LAN, WirelessLAN.

Associated with: Offshore IT Support

$11.00 /hr
11 hours