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Fix SMTP postfix email config on an existing server

I have a problem with SMTP postfix on a CentOS server, something seems bad configured and email clients (Outlook, thunderbird, OSX Mail, iPhone Mail, etc.) can't send email, no matter what settings are used on the client (SSL on or off, ports 587 or 465, auth by password, nothing works). Some work has been done on the server, like installing a SSL certificate, changing some stuff on postfix config files, but problem stays the same. I need an expert on postfix SMTP configuration. Thanks in advance!

Ικανότητες: Email Developer, Linux, Αρχιτεκτονική Λογισμικού, UNIX, Φιλοξενία Ιστοσελίδων

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Σχετικά με τον Εργοδότη:
( 5 αξιολογήσεις ) Mexico City, Mexico

Ταυτότητα Εργασίας: #15002042

36 freelancers κάνουν προσφορές κατά μέσο όρο $40 για αυτή τη δουλειά

sudhanlogics

Hello, professional linux system admin with 14 years of experience. Expert in postfix. let me know if u need my services. best regards sudhan Relevant Skills and Experience postfix, linux Proposed Milestones $30 US Περισσότερα

$30 USD σε 1 μέρα
(250 Αξιολογήσεις)
6.8
RWHTech

I can get in there, identify the issue and apply fixes to get your mail flowing again. Relevant Skills and Experience I run a web hosting service and have extensive postfix troubleshooting experience. Proposed Milest Περισσότερα

$50 USD σε 1 μέρα
(207 Αξιολογήσεις)
6.5
kuldeepvk

Hi, I will fix SMTP postfix email config on an existing server. thank you Relevant Skills and Experience 8 years Proposed Milestones $25 USD - I will fix SMTP postfix email config on an existing server.

$25 USD σε 1 μέρα
(210 Αξιολογήσεις)
6.5
tanujchugh

I will configure SMTP Postfix and resolve the issue. Relevant Skills and Experience Having 8 years of experience in this field will resolve the issue. Proposed Milestones $30 USD - Postfix setup

$30 USD σε 1 μέρα
(163 Αξιολογήσεις)
6.4
ownmyserver

Hi, I have reviewed your requirement and i find this quite interesting, From last 8 years we are into this, will provide quick and perfect solution for your all type of technical issues/requirement. Relevant Skills an Περισσότερα

$25 USD σε 1 μέρα
(127 Αξιολογήσεις)
5.9
Gauravsingh9828

Hello, I will do all server side tasks and will resolve all issues as well. I will make sure that everything will be in perfect condition. Thank you Relevant Skills and Experience I have more than 3 years experience Περισσότερα

$30 USD σε 1 μέρα
(102 Αξιολογήσεις)
5.7
nizamec2012

Hello, Please share the server configuration details so that I can check & resolve the issue. Thank you Relevant Skills and Experience Server admin Proposed Milestones $30 USD - Server

$30 USD σε 1 μέρα
(109 Αξιολογήσεις)
5.4
ebaghdasaryan

Hello I am system and network administrator, with more than 10 years of experience. Unfortunately I cannot say much here because of character count restriction Regards Eduard Relevant Skills and Experience Postfi Περισσότερα

$50 USD σε 1 μέρα
(37 Αξιολογήσεις)
5.1
netonepk

I am Linux expert with more than 10 year experience and managing postfix on daily basis , I can help you regarding this project Relevant Skills and Experience Linux Administration , Proposed Milestones $50 USD - Full Περισσότερα

$50 USD σε 0 μέρες
(57 Αξιολογήσεις)
5.2
$25 USD σε 0 μέρες
(60 Αξιολογήσεις)
5.2
abdofarag2

Hello, I'm a Linux\Unix systems engineer, VMware administrator, also certified Red Hat and VMware. Relevant Skills and Experience I have good experience in Linux administration, troubleshooting, service installing and Περισσότερα

$50 USD σε 0 μέρες
(20 Αξιολογήσεις)
5.3
redssr

What error do you get while sending the mail. What does the mail log says on the server Relevant Skills and Experience About myself https://www.freelancer.com/u/redssr.html Proposed Milestones $20 USD - def same as Περισσότερα

$20 USD σε 2 μέρες
(61 Αξιολογήσεις)
4.7
chiragdosi

I am Red Hat Certified Linux Engineer and having 5+ year of experience in Managing Core Server | Dedicated Server | VPS Server | Server Security | Server Optimization| Backup and Restoration process. Relevant Skills a Περισσότερα

$25 USD σε 1 μέρα
(29 Αξιολογήσεις)
4.8
Buckethost

Hello, we have more than 3 years experience in setup and management of different Linux web hosting servers like CentOS, RedHat, Ubuntu, Debian etc. we fix smtp and ssl Relevant Skills and Experience Linux, Web Hosting Περισσότερα

$25 USD σε 1 μέρα
(24 Αξιολογήσεις)
4.7
infihost

Hi, We will Fix SMTP postfix email config on an existing server. Thank you. Relevant Skills and Experience 5 years Proposed Milestones $20 USD - We will Fix SMTP postfix email config on an existing server.

$20 USD σε 0 μέρες
(46 Αξιολογήσεις)
4.7
lawrence37

I have over 15 years system administration experience with a number of distributions of linux / unix and windows server, working for a large number of blue chip companies here in the UK. Skill-List (Including but not Περισσότερα

$50 USD σε 1 μέρα
(26 Αξιολογήσεις)
4.8
$35 USD σε 1 μέρα
(14 Αξιολογήσεις)
4.4
raiakanksha49

Hello sir/ma'am.. I have gone through your project domain..and i want to complete your project. I have 7 years of experience and i can complete your project within your budget.. Thankyou!..

$30 USD σε 1 μέρα
(12 Αξιολογήσεις)
4.5
peymann

It can be the iptable config, I think we need open the ports and check it, also it could be a missing config in postfix, if you provide the ssh access I will start working on it Relevant Skills and Experience sys admi Περισσότερα

$45 USD σε 1 μέρα
(7 Αξιολογήσεις)
4.1
Deepwebexpert

Client suffering a bad configuration of SMTP. email is not being to send any more. I understand the issue and ready to fix it right away. Relevant Skills and Experience I am working as a server admin since 6+ years an Περισσότερα

$25 USD σε 1 μέρα
(17 Αξιολογήσεις)
4.0