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Unix server administrator needed asap. Centos 7. Make sendmail secure smtp relay to 1and1 smtp server or secure sendmail to stop email bounces

Ok, I need a high quality proven unix systems administrator for what should be a relatively straightforward task. At the moment not all emails from my ecommerce store are being delivered to clients. Gmail for example is refusing delivery of the emails. this is one of the refused emails when viewed in Alpine client on the server.

'< 550-5.7.1 [2a01:7e00::f03c:91ff:fe31:302c] Our system has detected that this

<<< 550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR records

<<< 550-5.7.1 and authentication. Please review

<<< 550-5.7.1 [login to view URL] for more information

I have a 1and1 Imap email account and I want to relay mail through that ideally (it must be port 587 TLS) and so I need sendmail configuring securely .So the setup has to comply with IPV6 mail sending guidelines.

Alternatively we can use the servers own sendmail as a secure relay, firewalld port will need opening for port 587 also for either option. At the moment it is relaying through smtp port.

Security is important.

This needs PTS records setting up, I can add those when needed to DNS

Only experienced trustworthy sys admins please with a lot of feedback who can do the task quickly.

thanks

'

Квалификация: Apache, Linux, Системное администрирование, Ubuntu, UNIX

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О работодателе:
( 4 отзыв(-а, -ов) ) sheffield, United Kingdom

ID проекта: #19757023

16 фрилансеров(-а) в среднем готовы выполнить эту работу за $140

tanujchugh

Hi I will configure sendmail securely to comply with IPV6 mail, setting up PTS records as per needs and have expertise in the relevant field.I have 9 years of experience. Ping me for further queries. Thanks.

$100 USD за 1 день
(256 отзывов(-а))
6.6
kuldeepvk

Hi, I will configure sendmail securely and set up relay email .It will comply with IPV6 mail sending guidelines. Let's discuss. Thank you

$77 USD за 0 дней(-я)
(275 отзывов(-а))
6.8
tangramua

Hello! I can help you to administrate your UNIX server according to your requirements. As for me I'm a professional system admin. For the last 10 years I was working as a senior system admin at hosting services p Больше

$155 USD за 3 дней(-я)
(44 отзывов(-а))
6.4
talhamq

I have experience in deploying and maintaining of: Cloud Computing Platforms: AWS Amazon Web Services,Microsoft AZURE, Google Cloud (GCP). Server Operating Systems: Windows Server 2003-to-2012R2, Windows Serv Больше

$100 USD за 0 дней(-я)
(208 отзывов(-а))
6.2
cjconstante

Hi there! I am a system administrator security focused with 6+ years of experience deploying and securing servers and cloud services. I would like to work with you to setup your mail server as per your requirements wit Больше

$250 USD за 7 дней(-я)
(49 отзывов(-а))
6.1
infihost

Hi, I will check the issue with mail sending and will fix the issue. I point the records and will resolve the issue. I do have more than 9 years of expertise in web hosting, server setup, server configuration, etc T Больше

$50 USD за 1 день
(110 отзывов(-а))
5.7
ciscoterminal

Dear Sir/Madam, i am CCIE Security and Red Hat Certified Engineer with 17 years of extensive Cyber Security and System administration experience. i will securely setup email server or relay server as requested. i will Больше

$85 USD за 3 дней(-я)
(50 отзывов(-а))
5.4
dchaidaris

Hello I can do all the proper configurations so that the emails that are send with your server get accepted by gmail. You can always contact me if you want to ask me anything. Thanks.

$100 USD за 1 день
(37 отзывов(-а))
4.9
servermaster

HI. I can take a look and change settings for DNS (mx, soa) and mail server primary domain. I recommend replacing sendmail with postfix greetings, taavi

$228 USD за 7 дней(-я)
(10 отзывов(-а))
4.9
MagentoQueen

Dear Client, I have 7+years of experience as a server admin . I have expertise with Linux and Aws servers. I have gone through your requirement and ready to start work right away. Kindly provide me SSH access. Than Больше

$110 USD за 7 дней(-я)
(15 отзывов(-а))
4.4
Pro4Magento

Good Day. Can help you properly reconfigure and fix all smtp problems, which you currently get on server. Unix Sysadmin with 10 years exp. Can be done within short time frame. Tnx and Regards.

$80 USD за 1 день
(29 отзывов(-а))
4.2
hawkscodes

Hi, I can start right now. I have read your exact requirements and will do your job as per your guidance so please initiate the chat so we can proceed ahead. I have +8 years of experience as a Linux Administra Больше

$150 USD за 3 дней(-я)
(15 отзывов(-а))
3.7
anujlinux1

Hello, Your mail server is hosted on which Linux distro and version? Can I have MX and TXT records for your domain? Since how long this issue going on? You may please message me to discuss further and resolve the is Больше

$222 USD за 3 дней(-я)
(3 отзывов(-а))
2.9
magesuperltd

Hello, What kind of an eCommerce are you running? I'm ready to sort this out within 2 hours maximum and will start right away. I have over 7 years of experience in eCommerce Development. Looking forward to hearing f Больше

$50 USD за 1 день
(4 отзывов(-а))
2.6
haigrevj

I have RHCE, RHCSA certified with 10 years of experience in server installation and maintenance I have RHCE, RHCSA certified with 10 years of experience in server installation and maintenance

$277 USD за 3 дней(-я)
(0 отзывов(-а))
0.0
sergiugordienco

Hi I am Sergiu an independend fullstack developer an I can do it, please view: [login to view URL] I own a company that I use for working with United States or anot Больше

$200 USD за 7 дней(-я)
(0 отзывов(-а))
0.0