Relay of own email domain names
It appears to be a known issue that as of yesterday, those of us who host our own email servers are no longer able to relay emails from our own domain names through VM smtp servers. This appears to ...
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I would just switch to a proper hosting provider.
I'm currently using eukhost. Their most basic shared package is around £60 per year for 10GB and email delay is about ~25 seconds.
Or you can use another relay service most offer 100-300 emails per day on their free tiers.
Looking into Amazon SES or outbound SMTP relay services now. Not looking for them to actually host anything - and the inbound SMTP to me is fine as it is.