MXAlerts alternatives
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MxToolBox
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Monitors the performance of your websites, DNS, and email servers along with blacklist monitoring. Get alerts by e-mail and SMS. Add 1 monitor for free. Plus free online network and DNS lookup tools.
tags: blacklist-monitoring email-monitoring free-network-tools network-monitoring network-utility
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SPF Toolbox
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SPFtoolbox is an Open Source Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more
tags: dns lookup mxtoolbox php rest-api
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Winning.Email
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Is your email being delivered? We can help! Our free, automated service will analyze your domain and help you make changes to improve your email deliverability rates.
tags: blacklist conversions email-deliverability email-delivery feedback-loop