DNS entrys (SPF, DMARC, DKIM,...) for increase of sent emaildelivery

Job ID: 34029910

Budget: €8 – €30 EUR

We are hosting 2 websites, site1.com and site2.com. site2.com sends mails by using the smtp server on mail.site1.com and the senders domain at site2.com is ... @site1.com. The result of this situation is that many mailboxes are refusing our emails.
We are searching for correct DNS settings to make our mails trusted by mailboxes like google and so on.
Related categories: System Admin Linux DNS Web Hosting Server