Outbound email that doesn't burn your domain reputation
Set up authentication, sending limits and list hygiene so cold outbound reaches inboxes without hurting delivery of your normal business email.
The new outbound campaign went out to a purchased list of several thousand contacts from the main company domain. Within days, replies dried up, and then customers started asking why invoices and proposals were landing in spam. The damage was not limited to sales. Every email from the company domain was now treated with suspicion.
Most teams treat deliverability as a tooling problem and buy another sending platform. The real issues are usually basic: missing authentication, unverified lists, sudden volume spikes and messages nobody asked for. Mailbox providers watch bounces, spam complaints and engagement closely, and recovering a damaged reputation takes far longer than protecting it.
Should we use a separate domain for cold email?
Yes, in most cases. A related secondary domain isolates cold outreach risk from your main domain, which carries invoices, proposals and support. Keep it clearly linked to your brand so recipients trust it and authenticate it fully.
How long should we warm up a new sending mailbox?
Plan for several weeks of gradual ramp rather than days. Start with low daily volume to people likely to engage, then increase steadily while watching bounces and complaints. Speeding up warm-up is a common cause of early reputation damage.
Is cold B2B email legal in India?
Rules depend on the recipient country, the data you use and how you obtained it. India's DPDP Act, and laws like GDPR or CAN-SPAM abroad, can apply. Check with your legal or compliance team before running campaigns.