{"eid":"postmark","name":"Postmark","domain":"postmark.com","resolved_by":"domain","topics":["email"],"n_records":1,"best_vorder":6,"review":null,"aliases":["Postmark","postmark.com"],"records":[{"rid":"email/postmark","card":{"rid":"email/postmark","eid":"postmark","topic":"email","slug":"postmark","provider":"Postmark","url":"https://www.postmark.com/pricing","domain":"postmark.com","category":"transactional sender","tier":null,"verdict":"fails-quota","vorder":6,"grp":"rejected","self_hosted":0,"confidence":"documented","binding":"request-rate","identity_kind":"email","identity_basis":"stated","needs_card":0,"needs_phone":0,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"rest","egress_metered":0,"per_object_bytes":null,"retention_days":45,"verified_at":"2026-11-04T05:33:30.049Z","verified_basis":"live","checked_on":"2026-11-04","stale_on":"2026-12-05","n_evidence":17,"usd_month":null,"usd_per_tb_month":null,"summary":"100 emails/month on the free Developer tier, which does not expire","duplicate_of":null,"n_unknown":0,"free_unit":"requests"},"record":{"topic":"email","slug":"postmark","provider":"Postmark","url":"https://www.postmark.com/pricing","category":"transactional sender","free_tier":{"stated":"100 emails/month on the free Developer tier, which does not expire","unit":"requests","metered_on":"request-count","source_url":"https://www.postmark.com/pricing","read_on":"2026-10-22","notes":""},"per_object_cap":{"stated":"not applicable","bytes":null,"notes":""},"retention":{"stated":"45 days of activity retention","days":45,"notes":"","source_url":"https://www.postmark.com/pricing"},"egress":{"terms":"not applicable: an outbound sender","metered":false,"free_allowance":null,"price_per_tb":null,"source_url":"https://www.postmark.com/pricing"},"interface":["rest"],"tooling":"curl, any HTTP client, any SMTP client","chaining":"composes with a domain and with nothing else at this volume.","limits":[{"kind":"request-rate","value":"100 emails per month with no daily allowance beyond it","source":"https://www.postmark.com/pricing"},{"kind":"write-gated","value":"until Postmark approves a new account, it sends only to addresses on domains added to the account and verified; review takes under 24 hours on weekdays","source":"https://postmarkapp.com/support/article/1084-how-does-the-account-approval-process-work"}],"identity_cost":{"kind":"email","detail":"an account with an email address; no credit card for the free Developer plan","country":null},"reliability_note":"no overage on the free tier","confidence":"documented","evidence":[{"url":"https://www.postmark.com/pricing","date":"2026-10-22","proved":"'Test your integration with 100 emails/month'"},{"url":"probe:smtp://smtp.postmarkapp.com:587","date":"2026-10-22","proved":"banner 250, EHLO advertises SIZE and 8BITMIME, STARTTLS completed, and AUTH LOGIN returned 334"},{"url":"https://www.postmark.com/pricing","date":"2026-10-30","proved":"message content history is kept 45 days by default","capture":"sha256:4bb4051eb4976bc6ad36bdd799d13e17f7f175eef8251b8ba20e573d817747dc","quote":"45 days worth of full content history by default to help you troubleshoot (customizable from 7 to 365 days if needed)."},{"url":"https://www.postmark.com/pricing","date":"2026-10-30","proved":"the free plan needs no card","capture":"sha256:4bb4051eb4976bc6ad36bdd799d13e17f7f175eef8251b8ba20e573d817747dc","quote":"Try Postmark Free No Credit Card Required"},{"url":"https://postmarkapp.com/support/article/1084-how-does-the-account-approval-process-work","date":"2026-10-30","proved":"a new account is limited to its own verified domains until it is approved","capture":"sha256:93eefbc8f9e68af9ea8820060059d2e8fa5525324052e52181888be22969a197","quote":"Until your account is approved, you won’t be able to send to any email address outside the domains you’ve added to your account and verified."},{"url":"https://www.postmark.com/pricing","date":"2026-10-30","proved":"the free plan allows no overage","capture":"sha256:4bb4051eb4976bc6ad36bdd799d13e17f7f175eef8251b8ba20e573d817747dc","quote":"No overages allowed in this plan."},{"url":"probe:smtp.postmarkapp.com:587","date":"2026-10-31","proved":"the Postmark SMTP relay answers on port 587 with a 220 ESMTP banner","capture":"sha256:21ba8b1bab525e6e89e778a2ad76f72cca8dfb34d1db49abb91165c33c3ddcd9","quote":".smtpservice.postmarkapp.com ESMTP"},{"url":"https://www.postmark.com/pricing","date":"2026-10-30","proved":"the free Developer plan gives 100 emails a month and does not expire","capture":"sha256:4bb4051eb4976bc6ad36bdd799d13e17f7f175eef8251b8ba20e573d817747dc","quote":"Everyone starts on our free Developer plan, which includes 100 emails every month. And it never expires or runs out."},{"url":"https://postmarkapp.com/developer/user-guide/send-email-with-smtp","date":"2026-11-02","proved":"the SMTP relay hosts are smtp.postmarkapp.com for transactional and smtp-broadcasts.postmarkapp.com for broadcast messages","capture":"sha256:455edad6cdb9b3d582a29c21177d087726331dab89e1dcefba4a5b61c4e04b7f","quote":"After enabling access, you will be able to connect to smtp.postmarkapp.com (for transactional messages) or smtp-broadcasts.postmarkapp.com (for broadcast messages)."},{"url":"https://postmarkapp.com/developer/user-guide/send-email-with-smtp","date":"2026-11-02","proved":"the SMTP relay is reached on ports 25, 2525 or 587","capture":"sha256:455edad6cdb9b3d582a29c21177d087726331dab89e1dcefba4a5b61c4e04b7f","quote":"Ports - 25, 2525, or 587"},{"url":"https://postmarkapp.com/developer/user-guide/send-email-with-smtp","date":"2026-11-02","proved":"TLS on the SMTP relay is available through STARTTLS","capture":"sha256:455edad6cdb9b3d582a29c21177d087726331dab89e1dcefba4a5b61c4e04b7f","quote":"TLS is available via the STARTTLS SMTP extension."},{"url":"https://postmarkapp.com/developer/user-guide/send-email-with-smtp","date":"2026-11-02","proved":"an SMTP client connects to the Postmark relay on ports 25, 2525 or 587","capture":"sha256:455edad6cdb9b3d582a29c21177d087726331dab89e1dcefba4a5b61c4e04b7f","quote":"Ports - 25, 2525, or 587"},{"url":"https://www.postmark.com/pricing","date":"2026-11-02","proved":"the pricing page captured on 2026-11-02 states the free Developer plan of 100 emails a month with no expiry","capture":"sha256:9fd76073c28fbbbfb6a6d8375a3f603a4b3519fefd9c91105430a290f51994e5","quote":"Everyone starts on our free Developer plan, which includes 100 emails every month. And it never expires or runs out."},{"url":"https://www.postmark.com/pricing","date":"2026-11-02","proved":"the free plan needs no credit card","capture":"sha256:9fd76073c28fbbbfb6a6d8375a3f603a4b3519fefd9c91105430a290f51994e5","quote":"Try Postmark Free No Credit Card Required"},{"url":"https://www.postmark.com/pricing","date":"2026-11-02","proved":"the pricing page was captured on 2026-11-02 and still states the free Developer plan","capture":"sha256:9fd76073c28fbbbfb6a6d8375a3f603a4b3519fefd9c91105430a290f51994e5","quote":"Everyone starts on our free Developer plan, which includes 100 emails every month. And it never expires or runs out."},{"url":"https://www.postmark.com/pricing","date":"2026-11-02","proved":"the pricing page still offers the free plan with no credit card","capture":"sha256:9fd76073c28fbbbfb6a6d8375a3f603a4b3519fefd9c91105430a290f51994e5","quote":"Try Postmark Free No Credit Card Required"},{"url":"https://www.postmark.com/pricing","date":"2026-11-04","proved":"the free Developer plan is 100 emails a month with no expiry, unchanged","capture":"sha256:4bb4051eb4976bc6ad36bdd799d13e17f7f175eef8251b8ba20e573d817747dc","quote":"Everyone starts on our free Developer plan, which includes 100 emails every month. And it never expires or runs out."}],"verdict":"fails-quota","verified_at":"2026-11-04T05:33:30.049Z","notes":"There is no burst room at all, which distinguishes it from every 100/day product here.","extras":{"stale_after_days":90},"binding":"request-rate","interface_detail":"https://api.postmarkapp.com/email; an SMTP relay at smtp.postmarkapp.com for transactional messages and smtp-broadcasts.postmarkapp.com for broadcast messages, on ports 25, 2525 and 587 with STARTTLS","limits_note":"no daily allowance exists: 100 emails per month is the whole month, which is 3.3 a day averaged. A verified sender signature or domain is required and a card is not"},"claims":[{"path":"$.free_tier","kind":"has-free-tier","num":1.0,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.free_tier.stated","kind":"free-quota","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.limits[0].value","kind":"limit:request-rate","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.limits[1].value","kind":"limit:write-gated","num":24.0,"unit":"hours","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[],"history":[],"drift":[]}]}