About to start manual-ish outreach for a B2B tool. Fresh domain bought last week, one mailbox. Everything I read is written for people sending thousands a day and I cannot tell which parts apply to 30.
Do I need a warmup period, how long, and is there anything at this volume that will actually get me filtered?
Sceptical about the automated warmup services. They work by sending fake mail between accounts in a pool and marking it as important, and providers have had years to learn what a reciprocal network looks like. A mailbox with 400 warm conversations and zero real threads is itself a signature.
At 30 a day you can do the honest version: send 10 genuinely personalised emails a day for two weeks to people likely to reply, and reply to everything that comes back. That is warmup. It is just slower and it involves talking to humans, which is the point of the exercise anyway.
Practical measurement problem at your size: you will not have enough daily volume for the postmaster dashboards to show you a spam complaint rate, so that feedback loop is closed to you. Your only real instruments are bounce rate and reply rate. Verify addresses before sending, keep hard bounces down near a couple of percent, and treat a single complaint as meaningful data rather than noise, because at 30 a day one complaint is a much larger fraction than it looks.
Separate domain, real mailbox, authenticate it, ten a day for two weeks, personalise enough that people actually reply. Warmup is just sending real mail slowly.
The bulk sender requirements kick in at 5,000 messages a day, so at 30 none of this applies to you. No DMARC needed, just send from a normal Gmail account and stop overthinking it.
That is the wrong way round. The 5,000/day figure is the point at which the full published sender requirements are enforced against you, not a line below which authentication is optional. SPF and DKIM are effectively table stakes for any sender now and cost nothing; DMARC is one of the things the bulk rules add on top.
Separately, a consumer mailbox has its own daily sending caps and a filter that is quite good at recognising 30 near-identical messages to strangers. 'Under the bulk threshold' does not mean 'invisible'.
@visa_run_val · 2h ago · 2 replies
Use a different domain from the one your product runs on. A lookalike is fine. That single decision is the difference between a bad month and a permanently damaged sending reputation on the domain your password reset emails go out from.
Then: SPF, DKIM and DMARC configured before the first send, no exceptions. Start at 5 to 10 a day for a couple of weeks and ramp toward 30 over the following two or three. At your volume the thing that gets you filtered is not the count, it is the pattern - identical bodies, no replies ever, addresses that bounce, and links to a domain with no history. Every reply you get is a positive signal, which is the real reason to go slowly at the start.
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@zigbee_zoe · 2h ago
The separate domain point is the one people skip and it is the only genuinely irreversible mistake on this list. Torch your product domain and you get to discover which of your customers never received their receipt.
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