What are SMTP codes?...or parameter is missing.530Authentication is required on the recipient side, your server has been blacklisted by the recipient's server, or the recipient's mailbox does not exist. 550 Actions are not...Deliverability FAQs
Am I charged for bounced emails?...through support to add that person back in, since we would have to remove them from the universal blacklist here. This is another safety measure put in place to avoid clients being unfairly targeted...Email FAQs
Are the emails sent through your servers?...campaigns? Internally, our compliance team double-checks emails going through our servers to prevent blacklisting and ensure that spam doesn't damage the reputations of our clients (sometimes people...Deliverability FAQs
Can I send emails without no email addresses/names?...service come from us, anyone sharing an IP address with you is affected if you get the IP address blacklisted, and then the company has to try to repair that damage. You could be affecting several other...Email FAQs