All tools

Every MailSends tool

Four record generators for the DNS records receivers check, and three on-demand lookups for the state of a domain or IP right now.

Generators

Build the SPF TXT record that lists who is allowed to send mail for your domain.

Build the DMARC policy record that tells receivers what to do when SPF or DKIM fails.

Build the record and policy file that force TLS on inbound mail to your domain.

Point receivers at your SVG logo and, where required, your verified mark certificate.

Look up a domain’s mail exchangers, resolve each host, and flag common misconfigurations.

Jump to your IP’s Sender Score report on senderscore.org, plus what MailSends already knows about it.

Check an IP or domain against Spamhaus and a curated set of open DNS blocklists, on demand.