Postfix Alternatives for Windows
Postfix is not available for Windows but there are some alternatives that runs on Windows with similar functionality. The best Windows alternative is MailHog, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Postfix and seven of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Postfix are Inbucket, PowerMTA, Microsoft SMTP Server and Lettre.
MailHog is an email testing tool inspired by MailCatcher, but easier to install.
MailHog vs Postfix opinions
Mailhog is for testing if another application can send mails.
Postfix is for sending and receiving mails.
Need to test your webapps outbound emails with Mailinator but stuck behind a firewall? Want to keep the new application you are developing secret until it’s time to release it? Need to validate that emails go out as part of your integration test suite?
Email gateway application (SMTP server) that makes it easy for senders to adopt the latest authentication specifications ( SPF and DKIM) to comply with changing ISP policies for accountable outbound email delivery. No over hype. It just delivers.
Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site. Mail can be delivered immediately or it can be delivered to a file location on disk where it can be retrieved for delivery later.
BulkMTA is Commercial Mail Server Similar to PowerMTA. IP Rotation, DKIM, Sender / Receiver Rate limiting.
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