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.



Skills: Apache, Linux, System Admin, Ubuntu, UNIX

See more: configure sendmail to use smtp relay, sendmail smarthost, sendmail forward to another mail server, sendmail relay configuration centos, postfix, sendmail mailertable, configure sendmail to send email out, secure sendmail ubuntu, set email server sendmail ubuntu, outgoing email settings wss secure smtp, make castelle faxpress save pdf format server, make custom network logon script windows server, unix bulk email, unix receive email, zen cart email stop, unix send email keywords log, unix send email script, email piping 1and1, contact form 7 email sent but not received, contact form 7 email subscription

About the Employer:
( 5 reviews ) sheffield, United Kingdom

Project ID: #19757023

16 freelancers are bidding on average $140 for this job


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 in 1 day
(256 Reviews)

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 in 0 days
(275 Reviews)

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 More

$155 USD in 3 days
(44 Reviews)

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 More

$100 USD in 0 days
(208 Reviews)

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 More

$250 USD in 7 days
(49 Reviews)

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 More

$50 USD in 1 day
(110 Reviews)

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 More

$85 USD in 3 days
(50 Reviews)

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 in 1 day
(37 Reviews)

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 in 7 days
(10 Reviews)

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 More

$110 USD in 7 days
(15 Reviews)

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 in 1 day
(29 Reviews)

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 More

$150 USD in 3 days
(15 Reviews)

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 More

$222 USD in 3 days
(3 Reviews)

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 More

$50 USD in 1 day
(4 Reviews)

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 in 3 days
(0 Reviews)

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 More

$200 USD in 7 days
(0 Reviews)