ai.pipefire/pipefire
3 changes recorded. MCP Harbor re-reads this listing from the official registry every six hours and asks the live server what it exposes, and keeps what changed between one look and the next.
− - [Pipefire](https://pipefire.ai/index.md): Done-for-you cold email software for agencies and service businesses: domains, mailboxes, warm-up, prospects, sequences and replies.− - [Your agent team](https://pipefire.ai/features/agents.md): Meet the eight Pipefire agents that find prospects, build and warm mailboxes, send, guard deliverability, sort replies and supervise the team.− - [Prospect finding](https://pipefire.ai/features/prospects.md): Pipefire finds your B2B prospects fresh: the businesses in the area you pick, the decision-maker where published, and an email address verified before it is sent to. No bought lists.+ - [Pipefire](https://pipefire.ai/index.md): Cold email software for agencies and service businesses that runs the work for you: domains, mailboxes, warm-up, prospects, sequences and replies.+ - [Your agent team](https://pipefire.ai/features/agents.md): Meet the eight Pipefire software agents that find prospects, warm mailboxes, send, guard deliverability, sort replies, plan the next area and supervise the rest.+ - [Prospect finding](https://pipefire.ai/features/prospects.md): Pipefire finds your B2B prospects fresh: the businesses in the area you pick, the decision-maker where published, and an email address verified before it joins your list. No bought lists.+ - [Pipefire tools API](https://pipefire.ai/tools/api.md): Reference for the free tools API at https://pipefire.ai/api/public/tools: domain, blacklist, header, spam word and subject line checks over JSON, no key.+ - [Big company email security statistics 2026: UK firms 2.4x as exposed as US](https://pipefire.ai/cold-email/big-company-email-security-statistics.md): Original research: we checked the email records of 758 FTSE 100, FTSE 250 and S&P 500 companies. 23.2% of the FTSE 350 can be impersonated by email, against 9.6% of the S&P 500. Data by index and sector.+ - [Black Friday email security statistics 2026: 1 in 5 big retailers can be impersonated](https://pipefire.ai/cold-email/black-friday-email-security-statistics.md): Original research: we checked the email records of 269 retailer, parcel carrier and marketplace domains in the UK, US and Canada before Black Friday. 20.2% of big retailers can be impersonated by email. Data by country and sector.
− - [Pipefire](https://pipefire.ai): Done-for-you cold email software for agencies and service businesses: domains, mailboxes, warm-up, prospects, sequences and replies.− - [Pricing](https://pipefire.ai/pricing): Flat monthly plans. Domains and mailboxes are included, not billed on top.− - [Features](https://pipefire.ai/features): Domains and mailboxes, warm-up, prospect finding, email writing, bounce and spam protection, the reply inbox and 24/7 monitoring.− - [Cold email infrastructure](https://pipefire.ai/features/infrastructure): Pipefire builds, warms, monitors and maintains your cold email infrastructure: domains, DNS, mailboxes, warm-up, protection and recovery.− - [Your agent team](https://pipefire.ai/features/agents): Meet the eight Pipefire agents that find prospects, build and warm mailboxes, send, guard deliverability, sort replies and supervise the team.− - [Domains and mailboxes](https://pipefire.ai/features/setup): Pipefire buys 10 sending domains, creates 20 mailboxes and writes every DNS record for you, so your real domain never sends cold email.− - [Warm-up](https://pipefire.ai/features/warmup): An email warmup tool you never have to run: every Pipefire mailbox is warmed for 14 days, measured daily and released for cold email only when it is ready.− - [Prospect finding](https://pipefire.ai/features/prospects): Pipefire finds your B2B prospects fresh: the businesses in the area you pick, the decision-maker where published, and an email address verified before it is sent to. No bought lists.− - [Contact forms](https://pipefire.ai/features/contact-forms): Pipefire reaches businesses that publish no email address through the contact form on their own website: one approved message, once, and only when you switch it on.− - [Email writing](https://pipefire.ai/features/campaign-writing): Answer a short brief and Pipefire writes your cold email sequence for the prospects on your list, checks every line, and sends only what you approve.− - [A/B testing](https://pipefire.ai/features/ab-testing): Pipefire A/B tests your cold email subject lines on positive replies, not opens, and switches to the winner once the result is statistically real.− - [Bounce and spam protection](https://pipefire.ai/features/health-checks): Pipefire verifies every address before sending and pauses automatically if bounces pass 3% or spam complaints pass 0.1%, so one bad list never burns your setup.− - [Reply inbox](https://pipefire.ai/features/replies): Pipefire sorts every cold email reply, brings interested prospects and questions to the top, notifies you and drafts an answer for you to send. Unsubscribes honored automatically.− - [24/7 monitoring](https://pipefire.ai/features/autopilot): Pipefire monitors every sending mailbox and domain around the clock, pulls failing mailboxes automatically and recovers them, so your cold email keeps running.− - [Deliverability](https://pipefire.ai/deliverability): How Pipefire keeps cold email out of spam: warm-up, placement testing and automatic pause-and-replace thresholds.− - [Cold email guides](https://pipefire.ai/guides): Every Pipefire cold email guide, grouped: domains and setup, warm-up, deliverability, writing, and tools compared.− - [Free cold email tools](https://pipefire.ai/tools): Free checks for cold email senders, starting with an SPF, DKIM, DMARC and MX domain checker.− - [Cold email domain checker: SPF, DKIM, DMARC and MX in one check](https://pipefire.ai/tools/domain-checker): Check a sending domain for cold email in one go: SPF, DKIM, DMARC and MX records, each with a plain-English fix. Free, no sign-up.− - [Free email deliverability test: send one email, see what servers see](https://pipefire.ai/tools/email-deliverability-test): Send one email to a one-off address and see what a receiving server sees: SPF, DKIM, DMARC, tracking, links and the words. Free, no sign-up, nothing kept.− - [Email blacklist checker: is your domain or IP on a blocklist?](https://pipefire.ai/tools/blacklist-checker): Check a domain or IP against SpamCop, Barracuda, UCEPROTECT, PSBL and Mailspike. For a domain, every sending IP is checked. Free, no sign-up, nothing stored.− - [BIMI checker: test your BIMI record and logo setup](https://pipefire.ai/tools/bimi-checker): Check a domain’s BIMI record: is it published, is the logo an SVG over HTTPS, is there a mark certificate, and is DMARC strict enough for the logo to show. Free, no sign-up.− - [MTA-STS checker: test your MTA-STS policy and TLS-RPT](https://pipefire.ai/tools/mta-sts-checker): Check a domain’s MTA-STS setup: the _mta-sts record, the policy file over HTTPS, whether it covers every mail server, its mode, and TLS-RPT reporting. Free, no sign-up.− - [SPF checker: test your SPF record for cold email](https://pipefire.ai/tools/spf-checker): Check a domain’s SPF record: is there exactly one, does it end correctly, and how many of the 10 DNS lookups does it use. Plain-English fix for each problem. Free, no sign-up.− - [DMARC checker: test your DMARC record for cold email](https://pipefire.ai/tools/dmarc-checker): Check a domain’s DMARC record: is it published at _dmarc, what policy it sets, and whether reports are going anywhere. Plain-English fix for each problem. Free, no sign-up.− - [DKIM checker: find and test your DKIM key for cold email](https://pipefire.ai/tools/dkim-checker): Look up a domain’s DKIM key at the common selectors or your own, and check it is live and long enough. Plain-English fix for each problem. Free, no sign-up.− - [MX lookup: check where a cold email domain receives mail](https://pipefire.ai/tools/mx-lookup): Look up a domain’s MX records and see where its email goes, in priority order, and whether it can receive replies at all. Free, no sign-up.− - [Free lead list: 50 businesses in your niche and city, fresh today](https://pipefire.ai/tools/free-leads): Tell us who you sell to and which city, and get 50 businesses with email addresses, owners, ratings and Google rank, found fresh today and emailed as a PDF and spreadsheet. Free.− - [Free AI cold email generator: short emails that get replies](https://pipefire.ai/tools/cold-email-generator): Describe your business, offer and audience and get a short cold email written to the rules that get replies, scored by our cold email checker. First email free, no sign-up.− - [Cold email checker: score your email before you send it](https://pipefire.ai/tools/cold-email-checker): Paste a cold email and its subject line and get a score out of 10 against the rules Pipefire checks its own emails with: length, subject line, reading level, the ask, and the phrases that cost meetings. Free, nothing stored.− - [Email header analyzer: read SPF, DKIM and DMARC results for cold email](https://pipefire.ai/tools/email-header-analyzer): Paste the headers of an email you received and see what the receiving server decided: SPF, DKIM and DMARC, alignment with the From domain, and the route with delays. Free, nothing stored.− - [Cold email subject line tester: score your subject before you send](https://pipefire.ai/tools/subject-line-tester): Type a cold email subject line and get a score out of 10 against the rules Pipefire writes its own subjects to: length, case, sales language and whether it gives the pitch away. Free, nothing stored.− - [Email spam checker: find the spam words in your cold email](https://pipefire.ai/tools/email-spam-checker): Paste a cold email and see which words and habits look like bulk promotion to a spam filter: money and urgency language, capitals, extra links and shorteners, plus our writing rules. Free, nothing stored.− - [Email verifier: check an address exists before your cold email](https://pipefire.ai/tools/email-verifier): Type an email address and find out if it exists before you send: valid, invalid, catch-all, shared inbox or disposable, explained in plain English. First check free each day.− - [Cold email sending domain generator: lookalike domains, checked](https://pipefire.ai/tools/sending-domain-generator): Type your business name or website and get lookalike sending domains for cold email, such as getyourbrand.com, checked against the registry so you see which are free to register.− - [Email permutator: every likely business email for a name](https://pipefire.ai/tools/email-permutator): Type a name and a company domain and get every common business email format, most likely first, ready to copy and verify. Free, runs in your browser.− - [SPF record generator for cold email domains](https://pipefire.ai/tools/spf-record-generator): Build a valid SPF record for your sending domain: pick your mail host, add other senders, and copy the TXT record with the 10-lookup limit checked. Free, runs in your browser.− - [DMARC record generator for cold email domains](https://pipefire.ai/tools/dmarc-record-generator): Build a DMARC record to the current standard (RFC 9989): pick a policy, add a reports address, and copy the TXT record for _dmarc. Free, runs in your browser.− - [DKIM record generator: turn a public key into a DNS record](https://pipefire.ai/tools/dkim-record-generator): Paste a DKIM public key and selector and get the exact TXT record and host name to publish, with key length checked. Free, runs in your browser, nothing is uploaded.− - [Use cases](https://pipefire.ai/use-cases): How an SEO agency, a law firm and a B2B service business would each use Pipefire, with the numbers worked through.− - [Pipefire MCP server](https://pipefire.ai/mcp-server): Free email deliverability tools for Claude, ChatGPT and Cursor: SPF, DKIM, DMARC, blacklist and header checks over MCP at https://pipefire.ai/mcp.+ - [Pipefire](https://pipefire.ai/index.md): Done-for-you cold email software for agencies and service businesses: domains, mailboxes, warm-up, prospects, sequences and replies.+ - [Pricing](https://pipefire.ai/pricing.md): Flat monthly plans. Domains and mailboxes are included, not billed on top.+ - [Features](https://pipefire.ai/features.md): Domains and mailboxes, warm-up, prospect finding, email writing, bounce and spam protection, the reply inbox and 24/7 monitoring.+ - [Cold email infrastructure](https://pipefire.ai/features/infrastructure.md): Pipefire builds, warms, monitors and maintains your cold email infrastructure: domains, DNS, mailboxes, warm-up, protection and recovery.+ - [Your agent team](https://pipefire.ai/features/agents.md): Meet the eight Pipefire agents that find prospects, build and warm mailboxes, send, guard deliverability, sort replies and supervise the team.+ - [Domains and mailboxes](https://pipefire.ai/features/setup.md): Pipefire buys 10 sending domains, creates 20 mailboxes and writes every DNS record for you, so your real domain never sends cold email.+ - [Warm-up](https://pipefire.ai/features/warmup.md): An email warmup tool you never have to run: every Pipefire mailbox is warmed for 14 days, measured daily and released for cold email only when it is ready.+ - [Prospect finding](https://pipefire.ai/features/prospects.md): Pipefire finds your B2B prospects fresh: the businesses in the area you pick, the decision-maker where published, and an email address verified before it is sent to. No bought lists.+ - [Contact forms](https://pipefire.ai/features/contact-forms.md): Pipefire reaches businesses that publish no email address through the contact form on their own website: one approved message, once, and only when you switch it on.+ - [Email writing](https://pipefire.ai/features/campaign-writing.md): Answer a short brief and Pipefire writes your cold email sequence for the prospects on your list, checks every line, and sends only what you approve.+ - [A/B testing](https://pipefire.ai/features/ab-testing.md): Pipefire A/B tests your cold email subject lines on positive replies, not opens, and switches to the winner once the result is statistically real.+ - [Bounce and spam protection](https://pipefire.ai/features/health-checks.md): Pipefire verifies every address before sending and pauses automatically if bounces pass 3% or spam complaints pass 0.1%, so one bad list never burns your setup.+ - [Reply inbox](https://pipefire.ai/features/replies.md): Pipefire sorts every cold email reply, brings interested prospects and questions to the top, notifies you and drafts an answer for you to send. Unsubscribes honored automatically.+ - [24/7 monitoring](https://pipefire.ai/features/autopilot.md): Pipefire monitors every sending mailbox and domain around the clock, pulls failing mailboxes automatically and recovers them, so your cold email keeps running.+ - [Deliverability](https://pipefire.ai/deliverability.md): How Pipefire keeps cold email out of spam: warm-up, placement testing and automatic pause-and-replace thresholds.+ - [Cold email guides](https://pipefire.ai/guides.md): Every Pipefire cold email guide, grouped: domains and setup, warm-up, deliverability, writing, and tools compared.+ - [Free cold email tools](https://pipefire.ai/tools.md): Free checks for cold email senders, starting with an SPF, DKIM, DMARC and MX domain checker.+ - [Cold email domain checker: SPF, DKIM, DMARC and MX in one check](https://pipefire.ai/tools/domain-checker.md): Check a sending domain for cold email in one go: SPF, DKIM, DMARC and MX records, each with a plain-English fix. Free, no sign-up.+ - [Free email deliverability test: send one email, see what servers see](https://pipefire.ai/tools/email-deliverability-test.md): Send one email to a one-off address and see what a receiving server sees: SPF, DKIM, DMARC, tracking, links and the words. Free, no sign-up, nothing kept.+ - [Email blacklist checker: is your domain or IP on a blocklist?](https://pipefire.ai/tools/blacklist-checker.md): Check a domain or IP against SpamCop, Barracuda, UCEPROTECT, PSBL and Mailspike. For a domain, every sending IP is checked. Free, no sign-up, nothing stored.+ - [BIMI checker: test your BIMI record and logo setup](https://pipefire.ai/tools/bimi-checker.md): Check a domain’s BIMI record: is it published, is the logo an SVG over HTTPS, is there a mark certificate, and is DMARC strict enough for the logo to show. Free, no sign-up.+ - [MTA-STS checker: test your MTA-STS policy and TLS-RPT](https://pipefire.ai/tools/mta-sts-checker.md): Check a domain’s MTA-STS setup: the _mta-sts record, the policy file over HTTPS, whether it covers every mail server, its mode, and TLS-RPT reporting. Free, no sign-up.+ - [SPF checker: test your SPF record for cold email](https://pipefire.ai/tools/spf-checker.md): Check a domain’s SPF record: is there exactly one, does it end correctly, and how many of the 10 DNS lookups does it use. Plain-English fix for each problem. Free, no sign-up.+ - [DMARC checker: test your DMARC record for cold email](https://pipefire.ai/tools/dmarc-checker.md): Check a domain’s DMARC record: is it published at _dmarc, what policy it sets, and whether reports are going anywhere. Plain-English fix for each problem. Free, no sign-up.+ - [DKIM checker: find and test your DKIM key for cold email](https://pipefire.ai/tools/dkim-checker.md): Look up a domain’s DKIM key at the common selectors or your own, and check it is live and long enough. Plain-English fix for each problem. Free, no sign-up.+ - [MX lookup: check where a cold email domain receives mail](https://pipefire.ai/tools/mx-lookup.md): Look up a domain’s MX records and see where its email goes, in priority order, and whether it can receive replies at all. Free, no sign-up.+ - [Free lead list: 50 businesses in your niche and city, fresh today](https://pipefire.ai/tools/free-leads.md): Tell us who you sell to and which city, and get 50 businesses with email addresses, owners, ratings and Google rank, found fresh today and emailed as a PDF and spreadsheet. Free.+ - [Free AI cold email generator: short emails that get replies](https://pipefire.ai/tools/cold-email-generator.md): Describe your business, offer and audience and get a short cold email written to the rules that get replies, scored by our cold email checker. First email free, no sign-up.+ - [Cold email checker: score your email before you send it](https://pipefire.ai/tools/cold-email-checker.md): Paste a cold email and its subject line and get a score out of 10 against the rules Pipefire checks its own emails with: length, subject line, reading level, the ask, and the phrases that cost meetings. Free, nothing stored.+ - [Email header analyzer: read SPF, DKIM and DMARC results for cold email](https://pipefire.ai/tools/email-header-analyzer.md): Paste the headers of an email you received and see what the receiving server decided: SPF, DKIM and DMARC, alignment with the From domain, and the route with delays. Free, nothing stored.+ - [Cold email subject line tester: score your subject before you send](https://pipefire.ai/tools/subject-line-tester.md): Type a cold email subject line and get a score out of 10 against the rules Pipefire writes its own subjects to: length, case, sales language and whether it gives the pitch away. Free, nothing stored.+ - [Email spam checker: find the spam words in your cold email](https://pipefire.ai/tools/email-spam-checker.md): Paste a cold email and see which words and habits look like bulk promotion to a spam filter: money and urgency language, capitals, extra links and shorteners, plus our writing rules. Free, nothing stored.+ - [Email verifier: check an address exists before your cold email](https://pipefire.ai/tools/email-verifier.md): Type an email address and find out if it exists before you send: valid, invalid, catch-all, shared inbox or disposable, explained in plain English. First check free each day.+ - [Cold email sending domain generator: lookalike domains, checked](https://pipefire.ai/tools/sending-domain-generator.md): Type your business name or website and get lookalike sending domains for cold email, such as getyourbrand.com, checked against the registry so you see which are free to register.+ - [Email permutator: every likely business email for a name](https://pipefire.ai/tools/email-permutator.md): Type a name and a company domain and get every common business email format, most likely first, ready to copy and verify. Free, runs in your browser.+ - [SPF record generator for cold email domains](https://pipefire.ai/tools/spf-record-generator.md): Build a valid SPF record for your sending domain: pick your mail host, add other senders, and copy the TXT record with the 10-lookup limit checked. Free, runs in your browser.+ - [DMARC record generator for cold email domains](https://pipefire.ai/tools/dmarc-record-generator.md): Build a DMARC record to the current standard (RFC 9989): pick a policy, add a reports address, and copy the TXT record for _dmarc. Free, runs in your browser.+ - [DKIM record generator: turn a public key into a DNS record](https://pipefire.ai/tools/dkim-record-generator.md): Paste a DKIM public key and selector and get the exact TXT record and host name to publish, with key length checked. Free, runs in your browser, nothing is uploaded.+ - [Use cases](https://pipefire.ai/use-cases.md): How an SEO agency, a law firm and a B2B service business would each use Pipefire, with the numbers worked through.+ - [Pipefire MCP server](https://pipefire.ai/mcp-server.md): Free email deliverability tools for Claude, ChatGPT and Cursor: SPF, DKIM, DMARC, blacklist and header checks over MCP at https://pipefire.ai/mcp.
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