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The Buzzmark blog

Practical writing on transactional email: deliverability, SPF/DKIM/DMARC, inbound mail, EU data rules and how Buzzmark is built.

Showing posts from September 2026 Show all

Deliverability 4 min read

We've doubled our sending infrastructure in Spain

Over the past few weeks we doubled the size of the infrastructure that delivers your mail. Nothing changes on your side. Here's what we added, how new capacity is brought online safely, and why we did it.

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