Email Delivery & Server Audit Expert Needed

@lawrence37

Hi, This one is right up my street, I'm an expert in mail delivery and have immediate availability - though I will say from the start, it sounds like you are being throttled A little about me: I have over 25 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. I’m full time freelance and also run multiple popular hosting companies - therefore it’s very rare there’s an issue I’ve not come across before. Skill-List (Including but not limited to): Windows 2000-2022 Server Exchange 5.5-2019, Exchange Hybrid, Office365 Linux / Unix Administration SAN Storage (NetApp, EMC Clariion, HP MSA/EVA/Lefthand) Server Virtualization (Vmware ESX, XenServer, Openstack) Desktop Virtualization (Vmware View, Xen Desktop) Application Virtualization (Thinapp, Xenapp) Networking (Cisco, Juniper, HP, Extreme, Ubiquiti) Firewall / IDS (Cisco, Fortigate, Juniper) Backup (CA Arcserve, HP Data protector, R1Soft, Veeam) Server administration (MsSQL, MySQL, Oracle (inc forms & reports), InnoDB, IIS, Apache, SCCM, WSUS) VoIP Solutions (Nortel, Avaya, Shoretel, Asterisk, FreePBX) Penetration Testing / Server Security/Hardening WHMCS, DirectAdmin, Plesk, cPanel, Webmin Mail delivery (PMTA, GA, MailWizz, Postal, Halon, Kumo) AWS, Azure Config/Management

@techplusintl

Hi, ★★★ PowerMTA Expert ★★★ 5+ Years of Experience ★★★ I can help you analyze and optimize your email delivery systems. I will: 1. Analyze both Linux servers thoroughly. 2. Review and optimize the PowerMTA and MailWizz configurations. 3. Examine queues, logs, and sending behavior to identify bottlenecks. 4. Check for any rate limits or throttling issues. 5. Conduct a complete deliverability audit, including checks on all IP addresses for blacklist listings and sender reputation. 6. Verify all necessary DNS records and configurations (SPF, DKIM, DMARC). 7. Identify the root cause of the performance issues and assist with migrating to new sending domains if needed. This approach will ensure that your email delivery performance is restored to optimal levels. The estimated time for this project is 5 days, and the budget can be discussed further based on the specific requirements. Ready to get started!

@jayantkumar314

I have strong experience with Linux server administration, DNS configuration, email infrastructure, SPF, DKIM, DMARC, rDNS, queue analysis, and deliverability troubleshooting. I can perform a full audit of your PMTA and MailWizz setup, analyze logs and queues, identify throughput bottlenecks, verify IP reputation, and determine the root cause of the recent performance degradation. I can also assist with migrating to new sending domains while maintaining the existing IP rotation strategy and ensuring proper DNS and deliverability configuration.

@kamran2012

Hi, I will audit both PMTA servers — queues, VirtualMTA configs, backoff patterns, and connection limits — then review MailWizz delivery server settings to pinpoint why throughput dropped. I will also run full IP reputation checks across all 10 addresses and verify SPF, DKIM, DMARC, and rDNS. A common culprit: PMTA retry queues silently backing up due to new throttling policies from major mailbox providers, which cascades into slow campaign processing. Questions: 1) Are the slowdowns consistent across both servers or worse on one? 2) Which mailbox providers are you primarily sending to? Ready to start whenever you are. Kamran

@vps8

Hi, I have 5+ years of experience managing Linux email servers with PowerMTA (PMTA), MailWizz, and bulk email infrastructure. I can analyze your PMTA and MailWizz configurations, review logs and queues, audit SPF, DKIM, DMARC, rDNS, IP reputation, identify the root cause of the slowdown, optimize deliverability, and assist with domain migration. I can start immediately and complete the audit within 1–2 days. I have huge experience working with different flavors of Linux such as Red Hat, CentOS, Ubuntu, Debian and other Linux distributions as well as Email SMTP provider cloud flavor such as Google Workspace, Office365 etc. As a systems administrator with over four years of practical expertise. My skills cover a wide range of areas including web server administration,(WHM/cPanel, CWP, Vestacp etc ), DNS management, Mail server configuration (Postfix, Exim, Office 365, google workspace (formerly g suite)), web server setup, WordPress, MySQL, Cloudflare, DNS record management, and proficient management of email services. Moreover, I have a strong background in setting up SMTP, IMAP, Outlook configurations, and integrating with various third-party SMTP services. Kindly chat once. Thank you

@iimtpradeepdash

Hi! The drop in sending speed and stuck campaigns, especially on setups that were stable before, usually points to one of three things: a subtle PMTA config issue, slow DNS or blacklist hits, or unwanted throttling from new reputation changes. Since you’re running two almost-identical servers, comparing logs and queue behavior across both will reveal a lot fast. I’ve done server audits for mail stacks with PowerMTA plus MailWizz, tracing performance issues to HELO mismatches, reverse DNS snags, and even IPs quietly added to niche blocklists. The key will be walking through each queue, mail log, and current DNS record, then running real sending and blacklist checks before and after. Quick question: Did you update any MailWizz or PMTA config recently, or did sending just slow with no obvious changes? That helps narrow down blame. If you want, I’ll send a free audit checklist you can reuse internally, and you can see details on past audits at work.techindika.com. — Pradeep

@cybexsoftadmin

Hi, With 15+ years of Linux and email infrastructure experience, I can perform a complete audit of your PMTA and MailWizz environment to identify the root cause of the slowdown and restore stable sending performance. I will review: • PMTA configuration, queues, logs, and throughput • MailWizz configuration and cron jobs • All 10 IPs for reputation, blacklist status, and throttling issues • SPF, DKIM, DMARC, rDNS, and HELO/EHLO settings • Server resources, network performance, and provider restrictions • New domain migration and DNS configuration while maintaining IP rotation Relevant experience includes managing high-volume PMTA infrastructures, deliverability optimization, IP reputation management, and Linux server administration. Questions: 1. What is your current daily sending volume? 2. Which Linux distribution are you using? 3. Are the delays occurring across all mailbox providers or specific ones? Available to start immediately.

@ilirjant

Hello, your problem is MailWizz server not PMTA servers, probably: 1 - You never updated operating systems on all servers 2 - You never deleted delivery logs or archived old campaigns in MailWizz 3 - You use too much segments/triggers when sending I can help you if you open a project at hourly rate and invite me. Best regards, Ilirjan

@nintysix96

Rough figures above - the bid and timeline are placeholders until we dig into the actual scope together. From what you've described, both servers were running fine until recently, and now campaigns are crawling or stalling. That points to something that changed - either on the ISP/provider side (throttling, reputation hits), or a config drift that built up over time. The goal here is to find the exact bottleneck, not just guess at it, and get throughput back to where it was, plus clean up the domain migration so the rotation stays intact. Here's how we'd approach this: - Server and log audit: SSH into both Linux servers, pull PMTA and MailWizz logs, check queue depths, retry patterns, and throughput stats to see where the slowdown actually begins. - IP and reputation check: Run all 10 IPs through major blacklist databases (MXToolbox, Spamhaus, Barracuda, etc.), check rDNS, HELO/EHLO config, and sender scores to see if any IPs are throttled or flagged. - DNS/auth verification: Confirm SPF, DKIM, and DMARC are all passing correctly for both sending domains - small misconfigs here can quietly tank deliverability without obvious errors. - PMTA config review: Go through the PowerMTA config files, check virtual MTA settings, IP rotation rules, connection limits, and bounce handling to spot anything that might be causing the queue stalls. - Domain migration: Once the audit is done, configure the new sending domains, set up all required DNS records, and make sure the 5-IP rotation carries over cleanly so you're not starting from scratch. After a short scope chat we'll put together a written proposal covering deliverables, timeline and a firm price. Want to jump on a quick call this week to walk through what you're seeing on the servers? Best, 96 Studio

@johnedwardl

Hi, I will conduct a thorough analysis of your PowerMTA and MailWizz setup to identify the root causes of the email delivery slowdown. With extensive experience in Linux administration and email deliverability, I understand the nuances of optimizing bulk email systems. I will review server configurations, analyze queues and logs, and investigate potential rate limits or throttling issues impacting performance. Additionally, I'll ensure all DNS records are properly configured to support deliverability and undertake a complete audit of your IP addresses for reputation and blacklist issues. To ensure a seamless transition, I will also assist with migrating to new sending domains if needed while preserving the integrity of your IP rotation setup. My approach will be systematic and focused on restoring optimal sending performance. I'm available to start immediately and can provide a detailed timeline and pricing based on your specific needs. Thank you.

@techsty2014

Hi there, We will audit both Linux servers, diagnose the sending slowdown, and restore full throughput across your PowerMTA and MailWizz setup. Our first step will be reviewing PMTA queue backlogs and connection counters per domain. Slow campaigns often trace back to throttled virtual MTA bindings or stale DNS caching on outbound resolvers. A couple of quick things to confirm: 1) Are the new sending domains already purchased? 2) Which major mailbox providers (Gmail, Outlook, Yahoo) show the worst delivery delays? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Ready to start whenever you are. Faizan

@umarbsse

I understand you need a PMTA, MailWizz, Linux, and email deliverability expert to audit two existing sending servers, identify why campaign speed has dropped, and restore stable delivery performance. • I can start immediately and review both Linux servers, PMTA configs, MailWizz settings, queues, logs, sending behavior, and throughput. • I will check all 10 rotating IPs for blacklist issues, reputation problems, spam database listings, DNS errors, and provider-side restrictions. • I will verify SPF, DKIM, DMARC, rDNS, HELO/EHLO, IP rotation, throttling rules, bounce handling, and queue processing. • I will systematically identify whether the slowdown is caused by PMTA limits, MailWizz cron/queue issues, server resources, DNS, reputation, or provider throttling. • I can assist with migrating to new sending domains and configuring all required DNS records while keeping the 5-IP-per-domain rotation working correctly. • I will provide clear findings, practical fixes, and explain what was changed so your setup remains stable after the audit. • Availability: I can begin right away. • Rate/quote: I am open to hourly or fixed pricing based on access and final scope. Approx. timeline: Initial audit within 24 hours; optimization and domain migration typically 1–3 days depending on issues found. Please message me with server access details so I can begin the audit immediately.

@riyaatd

Hey i think you would like to read this I specialize in Linux administration, PowerMTA (PMTA), MailWizz, and email deliverability. Your slower email campaigns require a thorough audit. As an expert, I will analyze your servers, review configurations, perform deliverability audits, and identify root causes. By migrating to new sending domains and maintaining IP rotation, I ensure optimal performance. What you can expect: - Comprehensive server and configuration analysis - Detailed deliverability audit - Identification of performance bottlenecks - Assistance in domain migration and configuration - Continued IP rotation functionality I would like to discuss more about the project. You lose nothing. If we create milestones, your payment will be fully protected, providing you peace of mind. Let's work together to enhance your email delivery efficiency. Kind Regards, Riyaat

@humeniukm

Hi, Since both PMTA servers were stable before and slowed down recently, I wouldn’t jump into reconfiguration first—I’d treat this as a performance + deliverability investigation. My approach would be to audit PMTA throughput, queue behavior, MailWizz processing, system resources, connection limits, ISP throttling, and reputation signals before changing anything. I’ll review logs, delivery patterns, IP warmness, blacklist status, DNS (SPF/DKIM/DMARC/rDNS), HELO/EHLO alignment, and confirm whether the bottleneck is infrastructure, reputation decay, provider limits, or domain-related. If migration is needed, I’ll move to new sending domains cleanly while preserving your current 5-IP rotation setup and keeping deliverability stable during transition. I’ve worked with Linux-based bulk mail environments, PMTA optimization, MailWizz, DNS alignment, and sender reputation recovery where inconsistent throughput and stuck campaigns were the main issues. Estimated audit + remediation plan: 2–4 days depending on queue volume. Available to start immediately. Thanks

@alyn48

Hello, there I can help you diagnose and optimize your PowerMTA + MailWizz infrastructure across both Linux servers, focusing on restoring fast, stable, and reliable email delivery performance. With strong experience in Linux mail systems, PMTA configuration, and deliverability tuning, I will perform a full end-to-end audit of your current setup to identify the exact bottlenecks affecting throughput. This includes reviewing PowerMTA queues, logs, throttling behavior, IP reputation across all 10 rotating IPs, and validating DNS/authentication records (SPF, DKIM, DMARC, rDNS, HELO/EHLO). I will also analyze MailWizz configuration, sending limits, and integration with PMTA to ensure optimal performance. If needed, I will assist with migrating to new sending domains while preserving your 5-IP rotation architecture and ensuring zero disruption. The goal is to pinpoint the root cause of slow delivery, remove constraints, improve reputation health, and restore consistent high-speed sending. Warm regards.

@mayr81

Hello, I understand you need an expert to audit and fix your PowerMTA and MailWizz email infrastructure due to slow sending performance and inconsistent delivery. My approach is to first analyze both Linux servers in detail, including PMTA configuration, MailWizz setup, queue behavior, and log files to identify what is causing the slowdown. I will also review IP reputation, blacklist status, DNS setup (SPF, DKIM, DMARC, rDNS), and sending patterns to find any throttling or deliverability issues. After identifying the root cause, I will optimize the configuration, improve sending stability, and ensure proper IP rotation is working correctly across both servers. If needed, I can also assist with migrating to new sending domains and setting up all DNS records properly. My focus is to restore fast, stable, and reliable email delivery while keeping your current infrastructure clean, optimized, and scalable.

@shaxzodj

Hi Boss I have solid experience with Linux server administration, email infrastructure troubleshooting, and bulk mail delivery systems including PowerMTA and MailWizz. I can help audit both servers, analyze queues/logs, check IP reputation, DNS records, deliverability issues, and identify the root cause behind the slowdown. A few quick questions: • Did the slowdown start after any recent server/configuration changes? • Which providers are receiving most of the emails (Google Gmail, Microsoft Outlook, Yahoo)? • Are the 10 sending IPs currently warmed up and clean from blacklist issues? Available to start immediately. Looking forward to discussing further.