B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
0.3%
0.3% -- spam complaint rate limit for Gmail bulk senders (senders emailing more than 5,000 emails/day to Gmail) (2026)
According to Google's Email Sender Guidelines, bulk senders sending over 5,000 emails per day to Gmail must keep their spam report rate below 0.30%.
- Applies specifically to bulk senders sending over 5,000 emails per day to Gmail accounts under Google Email Sender Guidelines
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
0.3%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Google
Primary
Tier C
https://digitnomad.net/digital-marketing/email-行銷工具比�%8… ↗
Source Article
Email 行銷工具比較 2026：MailerLite、Mailchimp、ConvertKit(Kit) 中小型網站怎麼選？
我幫三個不同性質的網站搬過電子報名單，兩次搬完才發現「當初選錯了」。第一次是幫朋友的手作品牌把 1,200 筆名單從 Mailchimp 搬到 MailerLite，光是把兩條自動化流程重畫、重設網域驗證，就花掉我一個週末。Email 行銷工具的差異不在「哪個功能多」，而在「你打算怎麼賺錢」——名單規模、自動化深度、賣不賣數位商品，這三件事決定了你該選誰。這篇我把 MailerLite、Mailchimp、Kit（原 ConvertKit）的官網定價逐條查過一次，直接給你能用的判斷依據。
📌 本文重點
- 免費方案的訂閱者上限差距最大：Kit 的 Newsletter 方案可到 10,000 …
Original Research
Google
· Original study ↗
Methodology
Google Email Sender Guidelines requirement: bulk senders must keep spam report rate below 0.30%, set SPF/DKIM/DMARC, and support one-click unsubscribe; cited by digitnomad.net comparison article (pricing/query date 2026-07-22)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Gmail bulk senders (senders emailing more than 5,000 emails/day to Gmail): 0.3% spam complaint rate limit. Source: Google (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/gmail-bulk-sender-spam-complaint-rate-limit
HTML Embed
<blockquote cite="https://lighthousedata.io/data/gmail-bulk-sender-spam-complaint-rate-limit" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>0.3%</strong> -- spam complaint rate limit for Gmail bulk senders (senders emailing more than 5,000 emails/day to Gmail)<br><small>Source: Google (2026) · <a href="https://lighthousedata.io/data/gmail-bulk-sender-spam-complaint-rate-limit" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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