ExternalFreelancerRemote$250–$750 USD

Fix IIS 500 Error & Exchange

Summary

Freelancer Client is hiring: Fix IIS 500 Error & Exchange.

Location: Remote

My IIS web server suddenly throws a “500 – Internal Server Error” every time it’s accessed. Nothing was altered in the IIS configuration before this started, yet the full error page appears instead of the site.

At the same time, after renewing the SSL certificate, Exchange Server 2013 has stopped delivering inbound email. Messages leave external hosts but never reach the internal mailboxes.

Restore normal page load on the IIS site, eliminating the 500 error.

Re-establish successful inbound mail flow on Exchange 2013 after the certificate renewal.

Acceptance will be a fully loading website and verifiable mail delivery tests (MXTools or similar) showing messages received internally.

Skills: .NET, System Admin, Troubleshooting, Microsoft Exchange, DNS, IIS, Windows Server, Network Administration, ASP.NET, SSL

Budget: $250–$750 USD


Source: Freelancer Client via Remote / Online. Apply on the source website.

Original

My IIS web server suddenly throws a “500 – Internal Server Error” every time it’s accessed. Nothing was altered in the IIS configuration before this started, yet the full error page appears instead of the site.

At the same time, after renewing the SSL certificate, Exchange Server 2013 has stopped delivering inbound email. Messages leave external hosts but never reach the internal mailboxes.

Here’s what I need addressed:

• Restore normal page load on the IIS site, eliminating the 500 error.
• Re-establish successful inbound mail flow on Exchange 2013 after the certificate renewal.

Acceptance will be a fully loading website and verifiable mail delivery tests (MXTools or similar) showing messages received internally.

Location & Details

SourceFreelancer
Budget$250–$750 USD
LocationRemote
Posted2026-05-18 16:16:00
.NETSystem AdminTroubleshootingMicrosoft ExchangeDNSIISWindows ServerNetwork AdministrationASP.NETSSL
Apply on source →

About this listing

This remote opportunity was imported from Freelancer and is shown here for discovery. To apply, follow the link to the original posting.

Skills mentioned:
.NETSystem AdminTroubleshootingMicrosoft ExchangeDNSIISWindows ServerNetwork AdministrationASP.NETSSL