Amazon SES alternatives

Reachkit makes a competing cold email tool. It doesn’t send app or transactional email, so it appears below only for outreach, which AWS’s rules keep off SES. I checked every price on this page in October 2026, on each vendor’s own pages.

By need:

• The closest developer swap, with a free plan: Mailgun, free for 100 emails a day, paid from $15 a month.
• Password resets and receipts, with a faster approval: Postmark, which reviews new accounts in under 24 hours on weekdays, by its own account.
• An email API plus a newsletter editor: SendGrid, with Marketing Campaigns sold next to the API.
• SMTP relay with someone to call: SMTP2GO, with phone support from its $15 plan and a free plan that doesn’t expire.
• Cheaper address checks than SES’s validation add-on: Kickbox.
• Cold outreach that SES won’t approve: Google Workspace for the mailboxes, Zapmail if you already have a sending tool, or Reachkit for inboxes and sending in one tool.

If the bill is your only complaint, check your plan before migrating. A new SES account starts on Essentials at $0.16 per 1,000 emails, and AWS lets you switch to à la carte, $0.10, at any time.

If your code hands mail to the SES API or its SMTP endpoint, entries 1 to 4 can take over. Each of them, like AWS, only allows recipients who opted in.

Mailgun, part of Sinch since the 2021 Pathwire deal, is the nearest thing to SES outside AWS: an email API and SMTP relay in US or EU data centers, with inbound routes that post incoming mail to your app.

Price (October 2026): the free tier allows 100 emails a day on one domain for one user, with a day of logs and no card. Basic is $15 for 10,000 a month. Foundation runs $35 for 50,000 and $75 for 100,000; Scale goes from $90 at 100,000 to $1,250 at 2.5 million, with the first month free on both.

Strengths:

• Foundation 100k and all Scale plans include a dedicated IP, and from Foundation you get automated IP warmup and as many users as you like.
• Validation, placement tests (Optimize, from $49 a month) and email previews (Inspect, from $99) come from Mailgun too.

Drawbacks:

• No pay-as-you-go: Mailgun’s help center calls its Flex plan deprecated and “formerly offered”, so you pick a monthly volume rather than paying per message as on SES.
• More than one Capterra review tells of an account switched off with no warning and no stated reason, and phone or chat support only comes with Scale.

Versus Amazon SES: at 100,000 a month with your own IP, Foundation’s $75 compares with $34.95 for SES à la carte plus a standard dedicated IP. In return there’s a free tier for new signups and no AWS account to manage. Mailgun profile

Postmark is built for the emails an app triggers, like resets, receipts and alerts, sent by API or SMTP. It dates from 2010 and became part of ActiveCampaign in 2022. Opted-in newsletters travel on a separate Broadcast stream that, Postmark says, never shares IP ranges with transactional mail.

Price (October 2026): a free Developer plan gives you 100 emails a month for testing. Paid tiers scale with volume: 10,000 emails cost $15 on Basic, $16.50 on Pro or $18 on Platform, and 125,000 cost $115 to $138. Billing is monthly only, and unused emails lapse.

Strengths:

• Postmark puts its manual account review at under 24 hours on weekdays. AWS’s promise for SES production access is a first reply within 96 hours.
• Message history is searchable for 45 days on all plans, and G2 compare pages score its ease of setup 9.2 to 9.3.

Drawbacks:

• The gap widens with volume: 1.5 million emails are $775 on Basic, against $150 on SES à la carte or $240 on Essentials.
• Its Trustpilot score is 2.0 across 47 reviews, with complaints centering on support speed, approvals and shut accounts, while G2 (4.6 from about 30) and Capterra (4.7 from 35) are far kinder.

Versus Amazon SES: the premium buys a person-reviewed start, shared IP pools Postmark manages, and 45 days of searchable messages in its dashboard. Your own IP is a $50 monthly add-on on Pro or Platform, once you send 300,000 a month. Postmark profile

SendGrid, a Twilio company since 2019, sells two products on separate bills: the Email API for mail your code sends, and Marketing Campaigns, an editor with contact storage, signup forms and automation. SES has no campaign editor, so this fits a team that writes newsletters and ships app mail.

Price (October 2026): a new account gets 60 days at 100 emails a day, card not required. Then the Email API’s Essentials tier is $19.95 a month for 50,000 or $34.95 for 100,000, and Pro is $89.95 for 100,000 with a dedicated IP. Marketing Campaigns begins at $15 a month for 5,000 contacts and 15,000 sends.

Strengths:

• Pro bundles the dedicated IP with automated warmup, 2,500 address validations and a week of searchable activity.
• Twilio’s pricing sheet publishes each tier’s overage rate, so a busy month has a known cost.

Drawbacks:

• Trustpilot rates it 1.1 out of 614 reviews, support leading the complaints. On Capterra, 53 reviews raise unpredictable account restrictions, and the review summary reads 79% of those as negative.
• Essentials mails from shared IPs; a dedicated one means Pro.

Versus Amazon SES: SendGrid’s $34.95 for 100,000 emails compares with $10 to $16 on SES, and Pro’s $89.95 with $34.95 for SES plus a standard dedicated IP. Twilio also demands affirmative consent. SendGrid alternatives

SMTP2GO has run its SMTP relay and email API out of Christchurch, New Zealand, since 2006. Apps use it, and so do Outlook, printers and scanners, which suits IT teams and managed service providers whose devices just need an SMTP server.

Price (October 2026): the free tier never lapses and carries 1,000 emails a month, capped at 200 a day. Starter costs $15 monthly or $150 yearly for 10,000, with each extra 1,000 at $1.20. Professional, with a dedicated IP, costs $75 monthly or $750 yearly for 100,000; a slider prices the volumes between. Paid plans can be refunded in full within 30 days.

Strengths:

• You can reach a person by ticket, live chat or toll-free phone from the $15 plan up, which is the gap SES’s G2 reviewers point to.
• Ratings run high everywhere: 4.8 on Trustpilot from 1,911 reviews, 4.7 on G2 and 4.9 on Capterra.

Drawbacks:

• A new account gets 1,000 emails, then a review; anything sent past that sits in a queue until SMTP2GO clears you. It won’t take signups from Gmail or Yahoo addresses.
• Trustpilot’s summary and its low-star reviews point to unexpected suspensions, one of them on a double opt-in list.

Versus Amazon SES: 100,000 emails come to $75, about twice SES à la carte with a standard dedicated IP ($34.95); the difference buys setup help and a phone line. Its terms require 100% opt-in lists. SMTP2GO profile

SES reviews an account at a 5% bounce rate and may pause it at 10%. Whichever sender you choose, a clean list costs less than an account review.

Kickbox verifies email addresses: an uploaded list, a list synced from your email tool, or one address at a time through its API as someone signs up. J2 Global, now Ziff Davis, bought it in 2020.

Price (October 2026): new accounts get 100 checks free. Then you buy credit packs, with no subscription, from $5 for 500 through $70 for 10,000 and $500 for 100,000, up to $2,999 for a million.

Strengths:

• Unknown results are free: when there’s no definite answer, Kickbox returns the credit.
• Past the smallest packs it undercuts SES’s own Email Validation, which costs $0.01 an address. A list of 100,000 is $1,000 to check on SES and $500 here. SES Pro does include 2,500 checks a month.

Drawbacks:

• Purchased credits lapse after a year, with no refund for what’s left.
• Its agreement forbids checking addresses “obtained from a third party” or those “of anyone who has not opted-in”, so prospect lists are off limits.

Versus Amazon SES: SES also offers Auto Validation at $0.01 per 1,000, which suppresses recipients it flags as you send, though AWS still charges for the send. Kickbox cleans the list before any sender sees it. G2 rates it 4.5 from about 660 reviews. Kickbox profile

If you tried SES for cold outreach, that’s the one job its rules close. Getting out of the sandbox means confirming you’ll only mail people who asked for it, and AWS’s acceptable use policy bans unsolicited mass email. Entries 6 to 8 are how cold email usually runs instead.

Google Workspace is Gmail on your own domain, bundled with Calendar, Drive, Meet and Gemini. For outreach, what matters is the mailbox: it sends and receives like a person’s inbox, with replies in the thread.

Price (October 2026): Business Starter costs $7 per user a month with a yearly commitment, or $8.40 on the month-to-month Flexible plan. Every sending mailbox is a paid user, the domain is bought separately, and there’s no free plan.

Strengths:

• Each paid user may send up to 2,000 messages a day, many times what a cold email mailbox should send.
• On Flexible, licenses can be dropped or the subscription cancelled whenever you like.

Drawbacks:

• There are no sequences or warmup, so a sending tool comes on top of $70 to $84 a month for ten mailboxes.
• Google’s own acceptable use policy also rules out unsolicited mass email, and Google warns that accounts sending spam may be permanently restricted from sending. Keep each mailbox’s daily volume modest.

Versus Amazon SES: SES bills per email for mail your code sends; Workspace bills per mailbox for mail a person sends and answers. A trial account can send 500 a day, and full limits can take up to 75 days to arrive once the domain has paid $100. Google Workspace profile

Zapmail builds Google Workspace or Microsoft 365 mailboxes for outreach by the dozen. It buys or connects the domains, writes the DNS records, then exports the mailboxes into a sequencer such as Instantly or Smartlead. It runs no campaigns; ZapBox, a free inbox, handles replies.

Price (October 2026): $39 a month covers 10 mailboxes on Starter, with each extra at $3.50, or $32.50 a month on yearly billing. Growth holds 30 for $99 and Pro 100 for $299, the API coming only with Pro. One plan covers Google or Microsoft, and a .com costs $13. After a year, its help center says, Google mailboxes renew at $49 a month on Starter plus $5 for each extra. There’s no free trial, and refunds only cover duplicate charges or a setup not delivered within 7 business days.

Strengths:

• In year one, Starter works out near $3.90 a mailbox, about half a directly bought Workspace seat.
• Zapmail says domains bought there are yours, and once one is 60 days old with its mailboxes deleted, the transfer out costs nothing.

Drawbacks:

• Warmup is unclear: one help article says standard mailboxes need “an external warmup tool”, while the homepage FAQ says warmup is handled for you.
• Mailboxes from elsewhere can’t come in, and cancelling queues yours for deletion.

Versus Amazon SES: SES sends your app’s mail from a domain you verify; Zapmail gives you real mailboxes on separate domains for people-to-people outreach. Trustpilot rates it 4.6 from 102 reviews. Reachkit vs Zapmail

This is our product. Reachkit is a cold email platform, and for someone whose outreach SES turned away, it covers the parts SES never had. One sentence becomes a drafted sequence and a matching audience, with leads verified before they’re added. It also registers new lookalike domains, sets their SPF, DKIM and DMARC, and creates Google Workspace or Microsoft 365 inboxes that start warming on their own. Mail leaves through each inbox’s own provider, not an email API.

Price (October 2026): the Growth plan costs $39 monthly or $29 a month paid yearly, and holds 5,000 contacts, 15,000 campaign emails a month and 1,000 lead credits. Scale, from $99 ($79 yearly), adds the CRM, REST API, webhooks and integrations. Your own inboxes connect with no per-inbox fee; done-for-you ones cost $5 a month each and $15 a year per domain. Ten of them on five domains, on Growth, total about $95 a month. You get 30 days free, no card.

Strengths:

• It guards bounces by default: CSV imports are verified at 1 credit per 10 addresses, and a campaign pauses when bounces hit 5%.
• Replies land in the Unibox with AI labels, and each new inbox starts at 3 emails a day, adding 3 a day up to a default of 20.

Drawbacks:

• It won’t send app or transactional email, so receipts and resets stay on SES. The REST API and webhooks need Scale; Growth has neither.
• Done-for-you inboxes want at least 3 weeks of warmup, only come on new domains, and disappear at the end of the paid period if you cancel. Fees aren’t refunded.

Versus Amazon SES: SES charges per email and routes inbound mail to rules you set up. Reachkit charges per workspace, with team members unlimited, and replies come back to an inbox your team reads. Pricing

Start with what SES carries for you today:

• A trickle of app email. The free tiers at Mailgun (100 a day) or SMTP2GO (1,000 a month). Postmark’s 100 a month only covers testing.
• App email you can’t afford to lose, with less AWS plumbing. Postmark or Mailgun at your volume, knowing both cost more than SES on every paid tier.
• Newsletters to subscribers. SendGrid, if you want its Marketing Campaigns editor and the API from one company.
• Printers, plugins or an Outlook relay. SMTP2GO.
• Millions a month. Stay on SES, on à la carte unless you use the plan extras. Nothing here matches its price per email.
• Cold outreach. No sender above permits it. Run it from mailboxes on separate domains: Google Workspace with a sending tool, Zapmail for a sender you have, or Reachkit for both.

Before cutting over, verify the domain with the new provider and route a slice of your mail through it for a while. More on SES’s plans in our Amazon SES profile.

I’d find out what SES is actually costing you before moving anything. If it’s the price on a new account, switching to à la carte takes it from $0.16 to $0.10 per 1,000, and nothing on this page beats that. If it’s the sandbox review or the AWS plumbing, Postmark and Mailgun cost more per email and save engineering time; at low volume that trade is usually worth it.

Outreach is the case I’d move first. SES was never built for it, and pushing prospect lists through the account that sends your password resets puts both at risk. Use separate domains and real mailboxes, which is what I built Reachkit for, so weigh my view with that in mind (how that setup works).

Related: the Amazon SES profile, SendGrid alternatives and Google Workspace alternatives.