To ensure that e-mails sent via Ungapped are not blocked by firewalls, spam filters, or internal security systems, it may in some cases be necessary to whitelist our IP addresses and domains.
This is especially relevant for organizations with strict IT policies, or where e-mails are not being delivered as expected.
✅ IP addresses to whitelist
Ungapped sends e-mails from the following IP range:
46.254.8.64 – 46.254.8.79
✅ Domains to whitelist
Please also add the following domains as trusted senders:
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ungapped.com
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ungapped.io
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ungpd.com
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ungppd.com