PowerMTA is an email server software used for sending high volume and transactional email. It is designed to handle large amounts of email traffic and has features such as advanced delivery controls, real-time monitoring and...
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What is MailWizz? MailWizz is an email marketing automation system that allows users to build their own email marketing systems. It is a self-hosted solution, which means that it consists of two parts: the sender (SMTP service)...
There are a few things you can try to fix the “SMTP 4.7.0 relay access denied” error: Make sure you’re using the correct username and password to authenticate with the SMTP server. Check that your email client...