We cannot send e-mails from our own mail service / website.

--EN-- I share the e-mail that explains our problem in detail and sent to authorized places by replacing some personal information with an example (IP block [login to view URL], [login to view URL]). Since we do not know exactly what and how to solve our problem, we are looking for someone who can solve or consult with this problem. It is a one-time job, but since we lack an IT employee, we can work together part time at the end of this job. --TR-- Problemimizi detaylı anlatan ve yetkili yerlere yolladığımız maili bazı kişisel bilgileri örnek ile değiştirerek (IP bloğu [login to view URL], [login to view URL]) paylaşıyorum. Problemimiz tam olarak ne ve nasıl çözülür bir bilgimiz olmadığı için, bu problemi çözebilecek veya danışabileceğimiz birini aramaktayız. Tek seferlik bir iştir ancak bir IT çalışanı eksiğimiz olduğu için bu iş sonunda beraber part time çalışılabilir. --DETAILS-- ( BUT NOT RESOLVED ) -Detailed mail we sent- Hello, Thanks for the investigation. I am Emre, the chief executive of EH. We are a freelancer group that creates websites for influencers. Our problem is we cannot send any e-mail to [login to view URL](.tr etc.) or [login to view URL] domains. E-mails sent could not be delivered even as spam. I guess our IP is blacklisted but I do not see any reason to that. We just started to operate and sent e-mails to [login to view URL] (my personal e-mail) and @[login to view URL] (my co-worker's personal e-mail). At first, our mails from *[login to view URL] to our personal e-mails were marked as spam. To fix that, we have updated our DMARC, SPF DNS settings. Then, we have contacted to our IIS, they have registered our Reverse DNS to mail.EH.com. Everything is perfect, we have right DNS settings, our Reverse DNS is resolving to [login to view URL] but our e-mails are completely ignored by Outlook/Hotmail system. We are operation on Windows Server. It is a VPS. We are working with a local company that offer VPS service. We have contacted to company, they could not figure it out. As a client, we are trying our best to remove this blacklisting. Maybe an IP block -that includes our IP- of this company is blocked. But, we ([login to view URL]) did not send any harmful/spam e-mails. We hope that you are going to remove this blacklisting, otherwise we will not be able to communicate with our clients. Regards, Emre -Incoming reply- Hello, My name is Sai and I work with the [login to view URL] Deliverability Support Team. We have implemented mitigation for your IP ([login to view URL]) and this process may take 24 - 48 hours to replicate completely throughout our system. Sincerely, Sai [login to view URL] Deliverability Support.