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Postfix SMTP Server Job Cost Overview

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Upwork Postfix SMTP Server Jobs Completed Quarterly

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

14

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Average Postfix SMTP Server Freelancer Feedback Score

Postfix SMTP Server Upwork freelancers typically receive a client rating of 4.77.

4.77
Last updated: August 1, 2015

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  1. 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
    5.00
  2. mohamed khalaf

    mohamed khalaf Agency Contractor

    Senior Linux and VoIP Administrator,

    Egypt - Tests: 3 - Portfolio: 1

    With more than 4 years of Linux and Windows Administration , I will be able to Support and Help My Valued Clients using my full experience with a Very wide range of applications and services such like : Linux ,Centos ,Fedora ,FreeBSD ,Ubuntu ,Windows Servers ,Cpanel ,Plesk , Zpanel ,ISPconfig ,WHMCS ,Google Cloud Computing ,Rackspace ,AWS ,Digital Ocean ,Godaddy ,Apache ,Nginx ,PHP ,Fastcgi ,SSL ,Mysql ,Bind ,PHPmyadmin ,Wordpress ,Joomla ,Firewalls ,VPN ,FTP ,Mail Servers ,Jira ,Confluence ,Stash ,Fisheye ,GIT ,Asterisk ,ELastix ,and many more services I'm a good Team Player and Team leader as well ,and I'm willing to Take any opportunity to prove my abilities just to make the client satisfied so I can build up my profile with a perfect feedback.

    Associated with: EGY-TECH Agency

    $14.00 /hr
    486 hours
    4.90
  3. Rahul M.

    Consultant

    India - Tests: 5 - Portfolio: 3

    Over the last 12+ years experience in the Linux and Messaging field: - Puppet Automation - Writing modules and custom providers -Email Platforms (Qmail, Postfix, Zimbra, Sendmail ) which includes deployment, Tuning and Migration. - Zimbra OSE/NE Specialist - Redhat clustering - load balancing and high availability - Monitoring (cacti, nagios, snmp,etc.) - DNS ( Bind , TinyDNS ) - nginx reverse Proxy - Regular Expressions - Perl/Bash/Python Scripting - Splunk Data Analytics

    $14.44 /hr
    426 hours
    4.32
  4. Sergo Sarkisian

    Sergo Sarkisian

    Linux , Cisco ,Vmware , Voip, firewall , security specialist

    Georgia - Tests: 18

    I want to utilize my knowledge, skills and professional experience in order to contribute to the growth of the company I am working for whilst improving myself. SKILLS:network engineer ,system administrator(RedHat,CentOS,FreeBSD,OpenBSD,WIndows 2000,2003 server), cisco certified specialist(CCNA) Configuration of CISCO routers and switches,firewalls,servers:cisco 36xx,65xx, series,ASA firewall 55xx series, Implementation , configuration,design ,troubleshooting of basic routing protocols(BGP,EIGRP,RIP,OSPF,QoS,MPLS,HSRP,VRRP,GLBP) , Security: IPsec and many vpn solutions,certificate setup 1 Web servers - Apache 2.x,nginx,Squid proxy 2 Mail servers -Postfix,qmail ,sendmail,Mdaemon 3 FTP servers -WuFTPD,Vftpd 4 DNS –bind version 9 ,VPN (Openvpn, IPSEC implementation ) 5 DATABASES-Sql,mysql,postgresql,sqlite 6 LVM ,RAID(0,1,5,10) configuration 7 Experinece in network monitoring tools:Nagios,MRTG ,Cacti

    Groups: Bluehost Developers and Designers

    $20.00 /hr
    921 hours
    4.99
  5. Paulo Arruda

    Paulo Arruda

    Linux System Administrator and Network Specialist

    Canada - Tests: 4 - Portfolio: 1

    My 9 years of experience in Linux Server Administration and Deployment, and 15 years of experience as Linux User, should be of interest to a rapidly growing company like yours. I've been working for the past 9 years building all kind of servers: from SOHO file servers to large mail deployments in HA/Virtualized/Cloud environments.

    Groups: LPIC-2

    $80.00 /hr
    486 hours
    5.00
  6. Lasantha Indika Amarasinghe

    Lasantha Indika Amarasinghe

    Linux System, Network and VOIP Engineer/Admin - more than 10 years

    Sri Lanka - Tests: 4 - Portfolio: 28

    I am having more than 15 years of Linux system and network administration, VoIP deployments, system integration. My major expert areas are: >>TCP/IP networking & Security :- Advanced ip routing, forwarding, filtering and firewall with Netfilter Iptables, TCP Wappers, Fail2Ban >>Servers :- Sendmail, Postfix, Dovecot, Courier IMAP, Squirrelmail, Roud cube, BIND, Apache, Nginx, VSFTPD, DHCPD, Squid, Samba, Ziproxy(image compression proxy server), any open source or closed source software in the field >> Proxy and content Swapping : Squid forward and revers mode proxy, Nginx forward and reverse mode proxy with content Swapping(Add click, Tracking modules, Java or any script adding to the live web content) >> Control Panels :- CPanel installation and administration >>VoIP :- FreeSwtich, Asterisk based products (Bare Asterisk, Elastix, Trixbox, FreePBX or any related), secure RTP streams (SRTP) with Transport Layer Security (TLS) with or without Server Certificate, CRM integration and Dialers >>Monitoring and remote admin :- Log analyzing, Monitoring, Remote desktop, Remote Admin using tools such like Sarg, Nagios, FreeNX, SSh/Telnet >>Scripting :- Bash, PHP, Perl, Curl >>Web and Database :- SQL Server, MySQL, HTML, PHP, Java Scripts >>Inter-networking :- LAN/WAN using Cisco and DLink Routers, Managed and unmanned Switches, Structured cabling and Fiber cabling systems, >>Telecommunication :- Circuit Switching, SDH and PDH, Ip based networks, Transmission, Telecommunication network implementation and maintenance >>Virtualization:- WMWare Exsi 4/5, HyperV, VirturlBox, Zen >>Operating Systems :- Redhat or Dabian based servers such like CentOS, Ubuntu, Dabian etc,. ### My time zone : GMT +5.30 (Asia/Colombo) Pls consider this on hiring me ### Quality of work : Commit to provide 100% not a bit less than that. If I say it can be done .. definitely it is possible. If I say cant .. surely I cant do that. Welcome clients...

    $22.22 /hr
    82 hours
    4.87
  7. Manoj Sonawane

    Manoj Sonawane

    Expert Linux, Unix sysadmin,devops

    India - Tests: 1

    Hello, I am an experienced programmer & system Administrator with expertise in high performance system infrastructure, customized deployment solutions, configuration management, monitoring, python , Django development, REST based backend systems and related infrastructure support. I am in process of becoming Official Amazon Provider Network Member - Consulting Partner [https://aws.amazon.com/partners/overview/consulting-partner/]. Highlights: 1. Created an infrastructure with over 4000 servers (physical as well as cloud servers aws, rackspace and go grid) distributed in 4 regions , implemented monitoring, ha, replication, configuration management. Recruited a team of 3 sys admin's , trained them and supported platform 24/7 with 3 engineers. 2. Have worked with several technologies and scaled it for high volume with massive cost savings. 3. Created a unified platform to interact with multiple public clouds. ( aws, go grid , rackspace with custom python based system) 4. Designed a geo-distributed, full tolerant with a SLA of 99.99999 deployment and deployed it using Amazon Cloud, Rackspace Cloud,gofrid cloud and on physical servers 5. Designed a scalable storage system using open source and commodity hardware. I have managed large (4000+) servers for my employers and clients, which include GE, Wipro, Lehman Brothers & Glam Media. I have managed IT security for GE and banking sectors (built a DC and developer shop for Lehman brothers in china). I now offer remote system management consultancy and training services. I have attached my linked in profile and references if you need them. I have designed, developed and maintained large scaling, load-balanced and redundant infrastructure for many clients. Most of the infrastructure I have designed are, • fully automated (saltstack/puppet and deployment via various code deployment tools integrated with git or subversion) • auto-scale (on demand scaling) • auto-heal and auto curate • fully load-balanced • in required cases geo-distributed • Monitored with custom performance plugins, logstash, nagios, check_mk, zenoss This infrastructure architecture and deployments were in different environments • Dedicated servers at various isps • Virtualized Environment (Xen, KVM, VMware and others) • Public cloud: Amazon, Rackspace, GoGrid, and others • Private Cloud:= openstack • Different Business Verticals, • Ecommerce • Social Application (www.ning.com ) • Big Data Analysis and Analytics • Media (audio and video) • Online Advertising • Banking, • BPO / KPO Web Servers (Apache, lighttpd, Nginx, Cherokee) Load Balancers (HAProxy, Nginx, Pound, LVS, balance, Varnish, Zeus Load Balancer) Ruby on Rails (Phusion Passenger, Unicorn) Python (mod_python, uWSGI, gunicorn) Java (Tomcat, Glassfish, Jetty, Jboss) Database/DataStores (Mysql + variants, Postgresql, Oracle, Mongodb, Memcached, Redis, Riak, Membase/CouchDB, nd others) Data Analysis (Hadoop, Bigdata) Distributed File System (Glusterfs, Coda, Ceph, pVFS, Lustre, ZFS, OneFS, XtreemFS) Search (Solr, Lucene, Nutch, ElasticSearch, Lily, Katta) Caching (varnish, memcache, flashcache) Monitoring (Nagios, Munin, Icinga, Ganglia, cacti, ntop, op5, Zabbix, pandoraFMS, OpsView and others) DNS (bind, tinydns,) Mail (postfix/sendmail/qmail/exim, Dovecot/Courier) Security (Snort, Splunk, Samhain, OSSEC, OSSIM, Suricata) Centralized logging (rsyslog+loganalyzer, splunk, zlogfabric, octopussy, Samhain, Graylog2, Kibana, Log.io, OpenTSDB, Flume, Scribe CMS (wordpress, joomla, mambo, typo3, etc and other custom developed CMS) and many other applications and services Most of these infrastructure architecture are for high volume traffic web application or for massive computing requirements. I can help you in following way. • python, django, golang web app development, REST back-end • code deployment, automation • Efficient monitoring system and notification configuration • OS updated and performance tuning of kernel to support database & applications. • Backup solution to take backup and transfer to offsite. • A configuration management ( saltstack / puppet/ cfengine) and load balancing solution. • • Source control using git, svn • On call support.

    $33.33 /hr
    21 hours
    5.00
  8. Samir Gonzalez

    Samir Gonzalez Agency Contractor

    Systems Administrator

    Egypt - Tests: 8 - Portfolio: 5

    I have been working with Linux and Windows for over 10 years, doing all kinds of desk support , and a few Server Installations including Apache, MySQL, PHP,IPtables and further more Linux services.Simultaneously i have performed tasks for companies and done free lance work,managing different types of opperating systems and programs. As for my actual fixed company related work experience,it has started 3 years ago, since I started working as a Network Administrator for Windows 2003 and 2008, then I became a Linux,Oracle Database and Oracle ERP Administrator.I master OSs applications' administration, as well as the fast learning of installation and configuration of new applications,no matter how complex they can be. I have also obtained some experience in C,C++,Java,PHP,Shell scripting ,Siebel and Project Management.

    Associated with: WinLix

    $16.67 /hr
    51 hours
    4.98
  9. ArunKumar S

    ArunKumar S

    Linux System Administrator

    India - Tests: 3 - Portfolio: 1

    Over the last 4 years, I've worked with two different Web Hosting support companies, where I had to handle cPanel/WHM, Virtualmin/Webmin, Direct admin, Zpanel, Plesk (basic windows hosting), Apache/Litespeed, MySQL, basic PHP, Exim, DNS(bind9) and many other applications and cloud servers. Has experience in setting up and managing cPanel based CloudLinux servers with all the server hardening and also know the basics of bash scripting. Have experience in both voice and ticket support system (WHMCS, Kayako, OsTicket etc). Can handle tickets with least response time and with good technical resolution and customer satisfaction since I'm having another 8 months of experience in BPO voice support for a Multi National Company. I've experience and have configured R1 soft backup for cPanel accounts, duplicity backups etc. I also have experience in setting up Linux servers, installing custom scripts, hardening the server etc. I also have knowledge in OpenVZ, Xen and VMware virtualization. Has experience in configuring the said virtualizations. I'm an expert in Nagios monitoring and with various other monitoring tools like Zabbix. TECHNICAL DATA SUMMARY: -COMPLETE LINUX SERVER MAINTENANCE/TROUBLESHOOTING (RHEL, CentOS, Debian, Ubuntu) -VIRTUALIZATION: (Vmware, Openvz, Virtuozzo, Xen, KVM, vserver) -CLOUD HOSTING (Amazon EC2, AWS, S3) -NETWORKING (DHCP,DNS:powerdns/bind/named)VPN: openvpn/pptp FIREWALL: iptables/ipfw, qos, proxies -WEB SERVERS (Apache, Nginx, Lighttpd, Tomcat) -MAIL SERVERS (Exim, Postfix, Qmail, antispam/ antivirus:clamav/spamassassin/amavis, courier, dovecot), -BULK MARKETING (Dkim, spf, high speed/inboxing) -MONITORING (zabbix, Nagios ) -HOSTING CONTROL PANELS (Cpanel/WHM, Plesk, DirectAdmin, Zpanel, Virtualmin) -MIGRATIONS/TRANSFERS (Websites, Emails and Application migrations with zero or no downtime guaranteed) CUSTOMER/CLIENT GENERAL WORK NATURE SUMMARY: -Always available in case of emergency just a ring away(Has both Mobile and land line number). -Has setup multiple monitors in twinview mode which helps to multitask easily and helps in reducing the ticket response times. -Experience in BPO Customer Support/service has improved my customer satisfaction skills. I always believe in the fact that a Customer is always the king. -Fast and reliable internet connection with a standby emergency WiFi network. -Two laptops(Ubuntu and Windows) and a desktop in case of emergency. -Flexible work hours and is ready to work on weekends too. -Trustworthy and transparent work. -Will provide daily shift reports in a well formatted way. You just leave the SERVERS to me to handle/manage and go and grab a drink!!!!!

    $5.56 /hr
    34 hours
    5.00