EmailDelivery.com

Support has become unresponsive, failing to reply to emails or messages sent through social media.

Waiting over two months for a ticket resolution is unacceptable.

Additionally, the software is a cumbersome monolith that lacks scalability. It struggles to deliver 100k emails, taking 2-3 days even on large VPS servers (in contrast, Mailwizz completes this in under an hour on the same server).

It would be wiser to refund and transition clients elsewhere.