Hey there,
After reviewing your project description its clear that you are looking for a server expert who will perform some maintenance task for your Email server and also for your Sendy Email marketing software by upgrading, troubleshooting of issues, setting up cron jobs as per your chosen time schedule, manage linux firewall, and some more task and problem solving that should appear in further.
I'm very experienced with Email Marketing, Email Handling, System Administration, Network Administration, SMTP Server Configuration, SMTP Autntication(SPF, Dkim, Dmarc, rDNS), Troubleshoot server issue that prevents users to send or receive emails or slower the servers email delivery and I also have long time experience in installing, configuring and managing interspire, mautic on server and also have used some desktop app like Gammadyne & 1and1 Email Marketing Software.
Actually I know how to handle this things properly an I'll do your tasks perfectly, effectively and happily, I have long time experience in this field.
Thanks in advance for giving the opportunity to working with you.
Have a good day.
Best Regards,
Serazum Munir.