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Email deliverability and testing tools · October 2026 Edition

MailReach vs Folderly

Two of fourteen models named MailReach first on the direct prompt; two named Folderly. MailReach was named by eleven of the fourteen models and Folderly by eleven and MailReach carries 30 labels and Folderly 20, so the shares are not directly comparable.

MailReach

accepted challenger

Named in one category this edition.

Folderly

accepted challenger

Named in one category this edition.

First-choice share7%3%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate7%5%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#6A position in a field of 12; printed, not drawn.
Labels3020A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, MailReach reading right to left. Rank and label count are printed, not drawn.GlockApps was named alongside these two in thirteen of the fourteen direct answers. GlockApps vs MailReach · GlockApps vs Folderly · Google Postmaster Tools vs MailReach

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the email deliverability and testing tools page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
MailReachFirst choices, of fourteen modelsFolderly
Direct221 against Folderly
Paraphrase10
Comparative00
Budget-constrained10
Scale-constrained00
Negative002 against MailReach
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, MailReach and Folderly were named in the same answer twenty-seven times, of the 62 answers naming MailReach and the 52 naming Folderly. In those answers Folderly took the first choice two times and MailReach four.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where MailReach and Folderly stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
MailReach Folderly first choice named as an alternative argued againstblank: not namedEach cell is one answer, MailReach on the left and Folderly on the right.

The direct prompt

The plain question, one answer per model, grouped by where MailReach and Folderly stood in it.

MailReach first, Folderly an alternative

2 of 14 modelsFolderly was named in the answer but not as the choice, or not at all.
DeepSeek V4 FlashMailReach alternatives: GlockApps, Google Postmaster Tools, MXToolbox
GLM 4.7 FlashXGlockApps, MailReach alternatives: Folderly, Warmy

Folderly first, MailReach an alternative

2 of 14 modelsMailReach was named in the answer but not as the choice, or not at all.
Mistral SmallFolderly, GlockApps alternatives: MailReach, Zoho CRM
MiniMax M2.5Folderly, Mailtrap alternatives: EasyDMARC, MXToolbox

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5InboxArmy, MailBrace alternatives: Folderly, GlockApps, HubSpot, Mailsoftly
Perplexity SonarGlockApps alternatives: Amplemarket, MailReach, NeverBounce
Grok 4.1 FastGlockApps alternatives: MailReach, Validity Everest, Warmy.io
Kimi K2GlockApps, Instantly alternatives: HubSpot Sales Hub, MailReach
Muse Glimmer 30BGlockApps alternatives: MailReach, Validity Everest

Neither was named

5 of 14 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniMailgun Optimize alternatives: GlockApps
Gemini 3.5 FlashAllegrow, GlockApps alternatives: Mailgun Optimize, ZeroBounce
Llama 4 MaverickGlockApps
Qwen 3.7 FlashGlockApps alternatives: 250ok, Instantly, Kickbox, Lemlist, Valimail, ZeroBounce
GPT-6 LunaValidity Everest alternatives: GlockApps

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
MailReach leads by three points.
MailReach5%#6 of 15
Folderly2%#13 of 15
The full small business standing →
Mid-marketThe figures above
MailReach leads by three points.
MailReach7%#3 of 12
Folderly3%#6 of 12
The full mid-market standing →
Enterprise
Level: the same share of first choices.
MailReach2%#8 of 14
Folderly2%#6 of 14
The full enterprise standing →

What the models said about MailReach

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.

“The tool may not accurately reflect deliverability for all B2B scenarios, so approach with caution if your audience is large or uses corporate email systems.” Mistral Small · negative prompt · soft negative
“Tools like GlockApps, MailReach, and Mailtrap vary in real-time validation depth — only some verify addresses at scale before sending.” Muse Glimmer 30B · negative prompt · soft negative
“MailReach is the best budget option for warmup and placement testing bundled into one affordable plan” Claude Haiku 4.5 · budget prompt · first choice
“or MailReach (warm‑up + testing at a lower price)” GLM 4.7 FlashX · direct prompt · first choice
“MailReach is the best overall choice in 2026” DeepSeek V4 Flash · direct prompt · first choice

What the models said about Folderly

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.

“Overpriced for most mid-market teams — many reviewers suggest MailReach as a better-value alternative.” DeepSeek V4 Flash · direct prompt · soft negative
“Folderly and GlockApps are top choices due to their comprehensive features and strong reputations” Mistral Small · direct prompt · first choice
“Folderly or Mailtrap would be the top choices.” MiniMax M2.5 · direct prompt · first choice
“Built specifically for B2B sales teams and lead-generation agencies running cold-email campaigns at scale” Claude Haiku 4.5 · direct prompt · alternative
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.