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Use a 3rd party SMTP like sendgrid. Once you get on a shitlist it's almost impossible to get off of it.
by UI_at_80x24 1y ago
Use a 3rd party SMTP like sendgrid.
Once you get on a shitlist it's almost impossible to get off of it.
- joaopbnogueira 1y agoWe signed up to MS 365 using a subdomain and try to triage the issue and if anything it only made the issue clearer, that it has nothing to do with the sending domain but pure content filtering.