Resolve AWS DNS Reputation ASAP

@kuldeepvk

Hi, I have 10 years of experience and knowledge as system administrator setup and management of different Linux Web Hosting Servers, AWS servers,Cloud Servers, GPU Servers, Server Monitoring, Server Security, Server Optimisation, Mailing Servers, Email Marketing, SSL, DNS, Apache, Nginx, etc with Cpanel, Plesk, Virtualmin or other panels. Services such as cPanel/WHM, Plesk, Virtualmin LAMP Stack, Tomcat, MySQL/MariaDB, Zimbra, Postfix mail server, Mailenable, smarter mail, MS SQL,AWS , etc. Please discuss to start. Thank you

@AZTURK1

Hi there, I understand the critical nature of your production SaaS issue affecting users on T-Mobile with DNS_PROBE_FINISHED_NXDOMAIN errors, despite DNS and reputation fixes. I’m confident I can help diagnose and resolve this carrier-level DNS blocking promptly. - Thoroughly analyze DNS resolution differences across networks including T-Mobile’s recursive resolvers - Validate AWS Route 53, CloudFront, ALB, and TLS configuration to ensure no infrastructure issues - Investigate carrier DNS filtering and residual reputation classification behavior - Recommend and implement a robust production-grade fix to restore reliable access - Provide clear guidance to prevent future domain reputation disruptions **Skills:** ✅ Advanced DNS troubleshooting & diagnosis (authoritative vs recursive) ✅ AWS Route 53, CloudFront, ALB configuration expertise ✅ Domain reputation systems and carrier DNS filtering mitigation ✅ Web security and phishing false-positive resolution ✅ Real-time SaaS application access assurance **Certificates:** ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’ve handled similar carrier DNS filtering challenges before ensuring seamless, real-time user access. Ready to start immediately for a swift diagnosis and permanent fix. Could you share recent logs or trace results from T-Mobile DNS queries to better understand the filtering behavior? Best regards,

@ambientinfotech

Hello I’ve reviewed your project and understand you need to resolve AWS DNS reputation issues ASAP so your domains and emails are no longer flagged, DNS records are clean, and your services regain trust and deliverability. We are experienced in AWS networking, DNS, and security, and can investigate your reputation status, fix misconfigurations (SPF, DKIM, DMARC, reverse DNS), update AWS Route 53 settings, and apply best practices to restore proper DNS behavior and reputation as quickly as possible. Best regards, Ambient Infotech

@ArchnaAdmin

Hi, I have 8+ years of experience as a System Administrator with hands-on expertise in setting up and managing Linux web hosting and cloud servers, including server security, monitoring, and performance optimization. I work with Apache, Nginx, DNS, SSL, Cloudflare configuration and hosting panels such as cPanel/WHM, Plesk, and Virtualmin, and I also handle email server setup and email marketing environments. I provide complete server deployment along with SSL installation (free or paid), including HTTPS configuration and final verification to ensure everything works smoothly. Please discuss your requirements so we can get started. Thank you

@kumarashish99

With over 5 years' experience as an AWS-certified professional, my knowledge of AWS (including Route 53), CloudFront, ALB, and DNS troubleshooting aligns excellently with your project needs. I have handled intricate backend development and DevOps projects involving similar DNS resolutions issues. Regarding reputation management solutions, I'm well versed with major domain reputation systems like Cisco Umbrella and Norton. I will fully leverage these skills to diagnose the carrier-level DNS-blocking behavior that T-Mobile users are experiencing and provide a robust, permanent solution for your production SaaS application. My knowledge of web security and phishing false-positive mitigation will further ensure enhanced protection for your platform. The speed at which you want the Diagnose-carrier-level DNS blocking behavior worked on is my specialty. In previous cases of similar nature, I have been able to diagnose and resolve issues in record time without compromising quality. Consequently, if chosen, I assure you that the T-Mobile-dedicated DNS resolution issue will be thoroughly analyzed, diagnosed, resolved permanently with guidance provided to prevent future disruptions in the estimated timeline. Let's get things back on track rapidly!

@Azursol

Hello Nitin! I’m excited about the opportunity to help with your project. Based on your requirements, I believe my expertise in Web Hosting aligns perfectly with your needs. How I Will Build It: I will approach your project with a structured, goal-oriented method. Using my experience in Linux, Web Security, Troubleshooting, Technical Support, DNS, Amazon Web Services, Web Hosting, Documentation, Change Management, SaaS, I’ll deliver a solution that not only meets your expectations but is also scalable, efficient, and cleanly coded. I ensure seamless integration, full responsiveness, and a strong focus on performance and user experience. Why Choose Me: - 10 years of experience delivering high-quality web and software projects - Deep understanding of Web Hosting and related technologies - Strong communication and collaboration skills - A proven track record — check out my freelancer portfolio. - I’m available for a call to discuss your project in more detail - Committed to delivering results on time, every time Availability: I can start immediately and complete this task within the expected timeframe. Looking forward to working with you, Nitin! Best regards, Ali Zahid India

@ixorawebmob

Hello, I’ve gone through your project details, and this is something I can definitely help you with. I have over 12 years of experience in web security and AWS architecture, focusing on DNS and domain reputation issues. Diagnosing carrier-level DNS filtering on networks like T-Mobile is critical, and I have successfully resolved similar cases in the past by implementing robust solutions to improve domain resolution across various networks. I will thoroughly analyze your DNS configurations, focusing on AWS Route 53, CloudFront, and ALB settings, while troubleshooting the ongoing blocking behavior specific to T-Mobile. My goal is to provide you with a permanent, production-grade solution that ensures uninterrupted user access. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to delve deeper into the specifics. Could you clarify: 1. Have you had communication with T-Mobile regarding this issue? Let’s discuss over chat! Have you had communication with T-Mobile regarding this issue? Regards, Arpit Jaiswal

@cybexsoftadmin

Hello, I’m a senior cloud infrastructure and DNS engineer with 15 years of production experience troubleshooting complex resolution failures across authoritative and recursive DNS, including carrier-level filtering issues. I’ve resolved similar cases involving AWS Route 53, CloudFront, ALB, TLS configuration, and domain reputation systems where sites worked globally but failed on specific mobile networks due to residual security classification or resolver behavior. My work typically covers DNS path analysis, resolver comparison, propagation tracing, reputation remediation, CloudFront edge validation, and permanent mitigation strategies to restore production access without future disruption. A quick clarification to align investigation: Are failures occurring only on T-Mobile default resolvers or also when users manually switch DNS? Has the domain recently changed IPs, CDN behavior, or TLS configuration? Happy to outline a rapid diagnosis plan and deliver a permanent production-grade fix. Best regards, Rahul

@oluwafemia8

i am ready to move immediately, seeing you have an urgent issue with Tmobile users not being able to access your site this could be a number of reasons, one of them being that your company infrastructure could be sharing its server with a malicious site which could cause this flagging from Tmobile or it could be as a result of your infrasture security set up but these are just assumptions. there are ways to work around this and get it sorted asap to make sure your app users who use the Tmobile service still can get access to your infrstructure with the most minimal down time possible i have a strong background in cybersecurity and i am also a certified cloud professional and i would like to use my skills to help get your infrasture back to where it is meant to be which is also serving the Tmobile users.