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

Last updated: October 1, 2015

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Amr Elgbaly

Amr Elgbaly Agency Contractor

System Engineer

Egypt - Tests: 5 - Portfolio: 1

Hi, this is Amr .. i work as Linux System Engineer i have 7 years experience in hosting filed as a system engineer and team leader i have very good experience in linux administration , system security , web serves , databases , virtualization technologies and VOIP Redhat/Ubuntu/Debian Web servers like : nginx , lighttpd , apache , cherooke ,litespeed Proxy servers : Squid , apache proxy Mail servers : postfix , Qmail , Xmail , exim Ftp servers: vsftpd , pure-ftp , proftp Databases : MySQL , percona , mariadb , postgresql , sqllite Control panels : Cpanel , Kloxo , webmin , plesk , direct admin Virtualization technologies : KVM , XEN , openvz , vmware Virtualization Control panels : Hypervm , Solusvm , Cloudstack , virtualizor , WebVirtMgr VOIP : Asterisk , Openser , FreePBX , Trixbox , Elastix , A2billing , Freeswitch CRM & ERP : OpernErp , SugerCRM i have a long time experience in managing Large , Enterprise , Complected environments with high skills in Deployment , Migrations, Tuning and performance optimizations over Linux OS. I'm a hard worker and friendly person and will get you job done prefectly

Associated with: Venatra Enterprise Solutions

$16.67 /hr
0 hours

Apu Ghose

Apu Ghose

Expert PHP Developer

Bangladesh - Tests: 3

Hi, I have about 9 years of experience in the field of IT, especially in SEO, developing web based software, website, e-commerce site, auction site, Android and iPhone Apps. I have extensive knowledge in OOP and MVC framework such as codeigniter, Yii, etc. In addition, I am very good in wordpress, joomla, prestashop. I strongly feel that my 9 years of experience in PHP, AJAX, JavaScript, Jquery, CSS, HTML, DHTML, XHTML, MySql, Oracle, Objective-C, C, C++, C#, Java, VB, ASP, LISP, prolog, Assembly Language (MASM), WML, WMLScript, MATLAB would satisfy all the necessary qualities required by the clients. As I have handled many critical issues as a team leader, I think I am the best to lead in the critical areas of coding and help the software engineers in software development. Furthermore, my experience in dealing with local and foreign clients would help in maintaining liaison and performing coordination role with the vendors or other stakeholders closely. Some of my developed sites are:,,,,,,,,,,,,,

$8.89 /hr
100 hours

Akram Hasan Sharkar

Akram Hasan Sharkar Agency Contractor

Other option

Bangladesh - Tests: 1 - Portfolio: 4

Wish words could explain my passions toward efficiency. Consider myself as an old owl (wise fella). Love to work, give my best effort for success. Giving up, I never tried this option B. I am core PHP programmer, web designer and linux administrator. I know the whole life cycle of byte algorithm and utilize them with my work. Worked with many top leading companies and developed thousands of web applications. I am pretty good with Email system as well, when i said pretty good It is freaking extreme for someone else. I do believe .. .. "Life is what we make it".

Associated with: Owntech Web Solution

$11.11 /hr
0 hours

Gaurav M.

Gaurav M.

PowerMTA and IEM Expert| Email-Marketing | SMTP SETUP| Linux Admin


Hello, I'm Linux System Administrator with 3 years experience in Email Marketing I have knowledge and huge practical experience:- I have knowledge and huge practical experience:- - Services - Email Services Provider, SMTP Server, Email Server Settings. - WWW Servers - Apache, IIS, Nginx. OpenVZ - Mail Server - PowerMTA V.4, Postfix, Qmail, Sendmail, Iredmail, Exim, Dovecot, Mail Enable. - Mail Authentication - A, MX, SPF, TXT record and Dkim key. - Admin Tools - Admintool, smit, linuxconf, vmstat, iostat, top, traceroute, ping, sar, ntop, webmin. - Security - IPtables, DDoS, Firewall, Routers and Switches - Databases - Mysql, Postgresql. - Hosting Panels - Webmin, kloxo, Parallels Plesk, Cpanel, ISP, Directadmin. - Other - InterSpire, OemPro, Samba, Proxy (squid), MRTG, Wordpress, drupal, magento, DNS, DHCP, OpenVPN, IP Rotation.

$5.00 /hr
0 hours

Konstantin R.

Konstantin R.

Hosting Administrator | Site Migration | Support | Wordpress

Russia - Tests: 1

I have over 7 years of experience in administration of hosting environments, troubleshooting and technical support. So, if your website was suddenly broken or infected by virus, i can easily fix it. I can also help you move your site to another hosting. I have worked with different CMS, such as Wordpress, Joomla, Drupal, osCommerce, Mediawiki and a lot of less known site engines. You can call me in Skype, Whatsapp or any other messenger of your choice. My system administration skills include: - Web-servers: nginx, apache, lighthttpd, tomcat, IIS - Mail-servers: exim, postfix, dovecot, spamassasin, Exchange - Control Panels: cPanel, WHM, ISPmanager, Plesk, ISPconfig, Websitepanel/SMBpanel - Virtualization: Hyper-V, OpenVZ, VirtualBox, Virtuozzo, Docker, LXC, VMware - DDoS filtering And related software, such as MySQL, MariaDB, Percona, Bind, proftpd, vsftpd, php-fpm, backup and restore.

$10.00 /hr
0 hours

Rodion F.

Rodion F. Agency Contractor

Linux System Administrator/PHP Expert

Ukraine - Tests: 11 - Portfolio: 9

Hello. I have more than 8 years of experience in system administrating. Have knowledge in: - setup and configuration of Linux Operation Systems (CentOS, Fedora, Ubuntu LTS, Debian); - System Virtualization KVM(libvirt),, ProxMox VE, OpenNode(Qemu-KVM, Openvz); - work with Control Panel ISPmanager, Cpanel, Webmin+modules, familiar with Plesk; - planning the backup of servers on the base of software and hardware solutions (Bacula, LVM Snapshots, Synology); - UTM configuration (Edian Firewall Community, IPcop Firewall, RouterOS, ClearOS); - Monitor System (Munin, Cacti, Zabbix); - Mail Server (postfix, sendmail и web-mail RoundCube); - web servers setup and optimization: Apache2(mod_rewrite, mod_security, mod_rpaf, etc.), nginx(assambly of additional modules); - database administrating MySQL, PostgreSQL; - Proftpd, vsftpd setup; - Free-SA, Sarg, Webalizer traffic accounting; - network buildout, routing configuration, understanding the principles of work TCP/IP, setup VPN (OpenVPN), DD-WRT, iproute2; - configuration of crossconnect hardware Mikrotik, DrayTek, D-Link, 3com. Also I have an extensive knowledge in web development: - writing the shell-scripts coreutils (sh, sed, awk, cut, etc.), text files parsing, understanding the PHP code, HTML/CSS, Python. Familiar with Configuration Management Systems Puppet I always make my code cross-browser compatible, responsive if this need and easy to read for other developers. So I will be glad to work with you on your projects.

Associated with: Optimus IT

$12.22 /hr
0 hours

Harish Sahu

Harish Sahu

System/Network administrator (Linux Mail server specialist)

India - Tests: 10 - Portfolio: 1

Self-Motivated System/Network Administrator with 5+ years' experience in Cisco(ASA,Router,Switch), Linux(Server ldap, mail, web, mysql, squid, ftp,samba), Microsoft (servers) technologies. Excellent at Designing and maintaining client/server Platform. I am hardworking and a fast learner with good communication skills and a strong design background.

$15.00 /hr
0 hours

Sargis Sanoyan

Sargis Sanoyan

System & network engineer

Armenia - Tests: 2

Create and manage network infrastructure, setting up Domain Controller (AD), DNS server, firewall security(TMG forefront, pfSense and more), mail servers (on Linux server), communication servers (Lync server on Windows server 2008 R2, XMPP (Jabber), Lotus Domino on Linux server, and more), global file storage, database server (MS SQL Server on Windows server 2008 R2) and more

$11.11 /hr
0 hours

Adbul Haseeb

Adbul Haseeb

Senior System administrator

United Arab Emirates - Tests: 2 - Portfolio: 1

I am a System administrator and my skillset includes: - Server administration: Linux and Windows - Amazon Web Services and technologies: EC2, API, loadbalancers, RDS, SES, Auto Scaling, SQS, S3, EBS. - Rackspace cloud computing: Servers, Databases, Cloud Block Storage, Load Balancers, Backup, Monitoring, Queue etc. - Loadbalancing and failover for applications: Haproxy, nginx, pound, Heartbeat, keepalived, DRBD, NFS, GFS, OCFS, MySQL replication. - Oracle database administration - Virtualization: Hyper-v, vmware Esxi, Basics of openstack. - Webservers: Nginx, Litespeed webserver, apache, IIS, tomcat/jBoss application servers. - Mail servers: Postfix, exim, sendmail, Amazon SES - Database servers: MySQL, PostgreSQL, Oracle, MSSQL, SQLite - Webhosting: Hosting contorl panels, Helpdesk support, Domain registration and DNS. - Security Auditing, Hardening and Troubleshooting: Hyperic, NMAP, Nagios, OSSEC, Zabbix, Monit, Firewalls - Office infrastructure support: Servers, Cyberom, ipcop, pfsense, VPN, Desktop support. - Scripting: Bash scripting, Windows powershell (versions 1 and 2), PHP, Perl. Scripting for API developments, Nagios plugin development, Automating tasks etc. - Networking: Routes, Switches, Gateways, windows RRAS, VPN, Gre tunnelling. Virtualized networks.

$27.78 /hr
0 hours