Category
SMTP setup, bounce handling, sender reputation, IP warmup, throttling
Google Postmaster Tools is free. It shows your Gmail-side spam rate, IP reputation, domain reputation, and authentication pass rates. This guide walks the signup, the daily-check routine, and how to wire findings back into AcelleMail.
Read more →Microsoft's Smart Network Data Services (SNDS) shows per-IP reputation for outlook.com / hotmail.com / live.com. This guide walks the SNDS signup, wiring AcelleMail's sending IPs in, and daily-checking the panel.
Read more →SES starts at 200/day sandbox, scales to 50k+/day in production, $0.10 per 1,000 emails. This guide is the practical cookbook: how to grow from sandbox to scale, region-by-region orchestration, what AcelleMail does at each tier.
Read more →Once you have 2+ sending servers, the AcelleMail dispatcher distributes per-message across them. This guide explains the rotation logic, how to verify it in the admin pool, and how to override for deterministic routing.
Read more →Bounce rate spiked. Complaint volume jumped. A campaign is stuck on Sending. This is the step-by-step runbook for when something breaks — every check runs from the dashboard, in the order that resolves most incidents fastest.
Read more →Gmail, Microsoft, Yahoo, and iCloud each react differently to a brand-new IP. A single uniform warmup curve ramps too fast for the strict receivers and too slow for the forgiving ones. This guide shows how to split warmup by recipient ISP u...
Read more →IP warmup is half the story. Your sending domain also accrues reputation independently — and a fresh domain takes 30-60 days to reach full standing at major ISPs. This guide is about the domain side: separate from but interlocking with IP w...
Read more →When a recipient clicks "Mark as Spam" on a Microsoft / Yahoo / AOL / Comcast mailbox, those ISPs send you the complaint via Feedback Loop. AcelleMail processes it automatically — unsubscribes the complainer, updates the complaint stats. Th...
Read more →Three numbers tell you most of what receiving servers think of you: bounce rate, complaint (spam) rate, and how engaged your list is. AcelleMail surfaces them on the campaign Overview tab and its Bounce log + Feedback log. This guide shows...
Read more →Blast 500k emails at once and you'll throttle yourself: receiving servers tar-pit you, your IP reputation drops, complaint rate spikes. AcelleMail's per-server sending limit lets you pace. This guide walks the UI + 4 throttling patterns by...
Read more →Amazon SES is the cheapest reliable sending option at scale — $0.10 per 1,000 emails. This guide walks the AWS-side setup (verify domain, request production), the AcelleMail-side config, and the gotchas (sandbox mode, region pinning, dedica...
Read more →A hard bounce is permanent; a soft bounce is temporary. AcelleMail records them in the campaign bounce log and treats them differently — hard bounces blacklist the address, soft bounces are left alone for the receiving server to retry. This...
Read more →Throttle, rate limit, sending limit. Different words, often confused. This guide separates them plainly — who enforces each — and shows the one control you actually set in AcelleMail: the per-server Sending limit.
Read more →Spread your volume across several SMTP and API senders for failover, reputation isolation, and headroom past any single vendor's cap. This guide walks the real screens: the type picker, the connect form, the per-campaign "Use all servers" t...
Read more →A fresh sending IP has zero reputation. Send 50,000 emails on day one and every major mailbox provider routes you to spam. AcelleMail's Warmup Strategies grow your volume gradually using one of three presets. This guide walks the admin UI p...
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