Developers ask AI: How can I send emails to my users?
Representative prompt — one of many ways developers ask this questionPostmark maintains its top spot from last month. SendGrid (up 2 from #5) rounds out the top three, taking the spot previously held by Amazon SES.
The biggest mover is SocketLabs, jumping 7 spots from #22 to #15.
| Rank Ordered by prominence across all models, compared to September 2026. | Product Company or product name that appeared in model responses for this category. | Prominence Prominence (1–100) weights how often a product is ranked ahead of others. Hover a score for average position and visibility. | Models Per-model prominence. Ring fill shows each model's prominence score. Hover a dot for prominence, average position, and visibility. |
|---|---|---|---|
| 1 — |
ActiveCampaign
|
98 |
|
| 2 — | 93 |
|
|
| 3 ▲2 |
Twilio
|
82 |
|
| 4 — |
Sinch
|
81 |
|
| 5 ▼2 |
Amazon Web Services
|
81 |
|
| 6 ▲1 |
MailerLite
|
71 |
|
| 7 ▼1 | 71 |
|
|
| 8 — |
Bird
|
63 |
|
| 9 ▲1 | 59 |
|
|
| 10 ▼1 |
Sinch
|
54 |
|
|
ALSO RANKED
|
|||
| 11 — | 52 |
|
|
| 12 ▲1 |
Mailchimp
|
48 |
|
| 13 ▲1 | 44 |
|
|
| 14 ▼2 | 39 |
|
|
| 15 ▲7 | 15 |
|
|
| 16 ▲3 |
Zoho
|
15 |
|
This is not a comprehensive list. Many factors influence whether a product appears in AI-generated results. Rankings reflect AI model behavior at time of testing. Appearance or absence does not constitute an endorsement or evaluation by LLM Rank.
Top 10 over time
October 2026How standings changed across April 2026 → May 2026 → June 2026 → July 2026 → August 2026 → September 2026 → October 2026. Hover a point or product name for details.
Dashed lines = months outside the top 10.
The top Transactional Email tools, according to…
October 2026 · top 5 per model
-
1
Postmark 97
-
2
Resend 95
-
3
Mailgun 83
-
4
SendGrid 82
-
5
Amazon SES 78
-
1
Postmark 97
-
2
Resend 94
-
3
Mailgun 82
-
4
Amazon SES 82
-
5
SendGrid 79
-
1
Postmark 100
-
2
Resend 90
-
3
SendGrid 84
-
4
Amazon SES 82
-
5
Mailgun 78
Transactional Email developers also ask about…
What are the best platforms for high-volume email sending? Representative prompt — one of several specialized views within Transactional Email
Rankings for a specialized prompt within Transactional Email.
| Rank Ordered by prominence across all models. | Product Company or product name that appeared in model responses for this category. | Prominence Prominence (1–100) weights how often a product is ranked ahead of others. Hover a score for average position and visibility. | Models Per-model prominence. Ring fill shows each model's prominence score. Hover a dot for prominence, average position, and visibility. |
|---|---|---|---|
| 1 |
Amazon Web Services
|
100 |
|
| 2 |
SendGrid
3
Twilio
|
91 |
|
| 3 |
Mailgun
4
Sinch
|
84 |
|
| 4 |
Brevo
7
|
76 |
|
| 5 |
Postmark
1
ActiveCampaign
|
75 |
|
| 6 |
Bird
|
74 |
|
| 7 | 70 |
|
|
| 8 |
Mandrill
12
Mailchimp
|
67 |
|
| 9 |
Mailjet
10
Sinch
|
65 |
|
| 10 |
SMTP.com
NR
|
56 |
|
Which email providers have the best deliverability? Representative prompt — one of several specialized views within Transactional Email
Rankings for a specialized prompt within Transactional Email.
| Rank Ordered by prominence across all models. | Product Company or product name that appeared in model responses for this category. | Prominence Prominence (1–100) weights how often a product is ranked ahead of others. Hover a score for average position and visibility. | Models Per-model prominence. Ring fill shows each model's prominence score. Hover a dot for prominence, average position, and visibility. |
|---|---|---|---|
| 1 |
Postmark
1
ActiveCampaign
|
100 |
|
| 2 |
Amazon Web Services
|
85 |
|
| 3 |
Mailgun
4
Sinch
|
83 |
|
| 4 |
SendGrid
3
Twilio
|
79 |
|
| 5 |
Bird
|
77 |
|
| 6 |
Resend
2
|
74 |
|
| 7 |
Brevo
7
|
70 |
|
| 8 |
SMTP2GO
9
|
69 |
|
| 9 |
Mandrill
12
Mailchimp
|
62 |
|
| 10 |
MailerLite
|
60 |
|
Which providers also support marketing email? Representative prompt — one of several specialized views within Transactional Email
Rankings for a specialized prompt within Transactional Email.
| Rank Ordered by prominence across all models. | Product Company or product name that appeared in model responses for this category. | Prominence Prominence (1–100) weights how often a product is ranked ahead of others. Hover a score for average position and visibility. | Models Per-model prominence. Ring fill shows each model's prominence score. Hover a dot for prominence, average position, and visibility. |
|---|---|---|---|
| 1 |
SendGrid
3
Twilio
|
99 |
|
| 2 |
Brevo
7
|
92 |
|
| 3 |
Mandrill
12
Mailchimp
|
80 |
|
| 4 |
Mailjet
10
Sinch
|
77 |
|
| 5 | 74 |
|
|
| 6 |
Postmark
1
ActiveCampaign
|
68 |
|
| 7 |
Amazon Web Services
|
67 |
|
| 8 |
Mailgun
4
Sinch
|
66 |
|
| 9 |
Customer.io
NR
|
64 |
|
| 10 |
Resend
2
|
63 |
|
Full report & dataset
Need to work with this data?
Complete per-model results and every individual model run in a spreadsheet, a PDF for citing with a written read on what moved.
In the October 2026 export
- 32 ranked products
- 3 models ranked in full
- 120 runs, with verbatim replies
- 3 prompt variants scored
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Transactional Email · October 2026
The full dataset behind the leaderboard, ready for your next deck
For analysts and marketers who need to work with these rankings, not just read them: complete per-model results and every individual model run in a spreadsheet you can pivot and chart, a PDF laid out for citing, with a written read on what moved — enough to build the slide before the meeting.
What you'll do with it
- Pivot and filter to find your own cut of the story
- Chart one product against the whole field
- Drop the rankings straight into a leadership deck
- See how consistently a product ranked, not just its average
- Cite a dated snapshot that won't shift next month
In the export
- All 32 ranked products, sortable and pivot-ready
- Complete rankings from all three models, not the top-10 slice charted here
- All 120 runs, each with its verbatim response and parsed ranking
- Three prompt variants scored in full
Data Trove XLSX
Every ranked product with complete per-model results, plus every individual model run and the ranking it produced, in sortable, pivot-ready sheets. (sample)
Data Dossier PDF
The full leaderboard laid out for reading, citing, and lifting into a deck, with the per-model breakdown the page only charts and a written read on what moved this month. (sample)