Fix Email Service on Linux CentOS Server

I have a Linux CentOS Server running the latest version. I host domains and other website content. In addition to these items, I run a mail server through this machine. I need to SECURE this server and the mail server within.

I constantly receive "delivery failure status notifications" stating emails that were sent from one of my domains was not accepted by Google, Yahoo, etc. I need to find and fix this vulnerability so it doesn’t happen again. Furthermore, I need to change the IP address associated with the server for sending emails. As the old IP address has now been blocked by several ISPs. Lastly, fix SPFs for EACH email account on the system. I’d like the domains to be able to send and receive emails without issues from ISPs.

Please provide a price and the amount of time it will take you to fix these issues. Once we agree on the price and timeline, you will need to send your Public SSH Key so I can provide you access to the server.

If you have questions, please PM me, thanks.

Aptitudini: Administrator sistem, Securitate web

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Despre angajator:
( 7 recenzii ) Frisco, United States

ID Proiect: #7823737

Acordat lui:


Hi my name is Dieg and I'm a linux sysadmin I suspect you have malware in one of your sites, thats why you are being blocked and blacklisted. I can debug whats going on (malware is most likely to be the issue), and Mai multe

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7 freelanceri licitează în medie 97$ pentru acest proiect


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%bids___i_sum_sub_35%%project_currencyDetails_sign_sub_36% USD în 3 zile
(27 recenzii)

Hello, Linux System Administrator and RHEL Certified Engineer, Expert in RHEL based operating system (RedHat, CentOS, Fedora ,,etc) Perfect knowledge of Debian based systems (Ubuntu, Mint,,etc) cPanel/WHM and other Mai multe

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to configure mail deliver it will need to modify dns records. how many domains will send mail in your system?

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Dear Client, Thank you for allowing us to place a bid on your project. We are one of the top Server Management Company in India. Our mission at 365 hosting Support is to provide high quality 24x7 server Mai multe

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%bids___i_sum_sub_35%%project_currencyDetails_sign_sub_36% USD în 3 zile
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Hi. I have been worked with web servers more than 5 years and with mail security too. On all my servers SPF configured and high security level. I can & want to help you

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