urgent help with troubleshooting SMTP TLS configuration on IIS - to start in next 2 hours

We have a Windows IIS SMTP server that started rejecting emails due to TLS misconfiguration. We confirmed certificate issue, have other servers configured correctly, so need assistance fixing the configuration issue or certificate to match other servers (that are using a wildcard certificate). The issue may be because host-specific certificate is installed rather than a wildcard one like on other servers

sample diagnostic log:

STARTTLS command works on this server

Cannot convert to SSL (reason: SSL connect attempt failed because of handshake problems)

Cert Hostname DOES NOT VERIFY ([url removed, login to view] != )

You will be given remote access to the server to work with us on this issue.

Skills: DNS, OpenSSL, System Admin, Web Security, Windows Server

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About the Employer:
( 47 reviews ) London, United Kingdom

Project ID: #15397484

Awarded to:


I can resolve the issue. Relevant Skills and Experience System admin, troubleshoot. Proposed Milestones $240 USD - Issue identified, resolved and verified to be ok.

$266 USD in 0 days
(1 Review)

8 freelancers are bidding on average $168 for this job


Greetings! Expert system admin with 14 years of experience. Windows server proficient. I have experience on IIS and SMTP Server. I can resolve this issue. Let me know. Best regards sudhan senior system admin

$250 USD in 1 day
(94 Reviews)
$61 USD in 1 day
(28 Reviews)

Hi, I will fix troubleshoot server and fix server issue. thank you Relevant Skills and Experience 8 years of experience. Stay tuned, I'm still working on this proposal.

$100 USD in 0 days
(45 Reviews)

As per my expertise in this field, I can assure you that I can easily do this task. And my only aim is to provide you with the fastest and the best solution for your job. Relevant Skills and Experience DNS, OpenSSL, S More

$155 USD in 3 days
(4 Reviews)

Hello I am an expert freelancer for your project. I am ready to start your job right now. let me know if you are looking for a real expert. Thanks Stay tuned, I'm still working on this proposal.

$155 USD in 3 days
(1 Review)

9 years of server experince in linux 9 years of server experince in linux 9 years of server experince in linux 9 years of server experince in linux Relevant Skills and Experience 9 years of server experince in linux 9 More

$155 USD in 3 days
(0 Reviews)

I think I can fix this easily if I get certificate file and access to the server along with domain name.

$200 USD in 1 day
(0 Reviews)