Any I.T experts? Cloud-based server/emails not reaching
Discussion
It sounds like it's time for an overhaul of your email tbh, that's a sticking plaster set up for making things work rather than having them set up to work as intended.
Mailpieces - get Mailchimp or something similar that will deal with mass mail, IP reputation and blacklisting. Use company email for the admin side and stick anything remotely wonky out to another company.
The company I work for make a cloud email filter that gives track and trace on anything sent to/from you as well as a spam/virus filter, happy to do a freebie licence if that helps, but I think right now you probably need to find out what's actually going on with your email, where it's going to, where it's not, and how deliverable it is to you and from you. That could be your SPF and DKIM signing not set up, you could be on some blacklists, your neighbour could be blacklisted. Needs more investigation really.
Mailpieces - get Mailchimp or something similar that will deal with mass mail, IP reputation and blacklisting. Use company email for the admin side and stick anything remotely wonky out to another company.
The company I work for make a cloud email filter that gives track and trace on anything sent to/from you as well as a spam/virus filter, happy to do a freebie licence if that helps, but I think right now you probably need to find out what's actually going on with your email, where it's going to, where it's not, and how deliverable it is to you and from you. That could be your SPF and DKIM signing not set up, you could be on some blacklists, your neighbour could be blacklisted. Needs more investigation really.
I've found mxtoolbox.com to be better for diagnosing blacklist problems. I'm fed up dealing with blacklists. Although they have a purpose they can be a nightmare to trace.
There is also here https://testconnectivity.microsoft.com/
There is also here https://testconnectivity.microsoft.com/
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