Written by: MailClickConvert
Last updated: February 2026
Author: MailClickConvert Team
Last Updated: January 20, 2026
Introduction
Bulk emails don’t fail on day one, and the problems teams experience rarely appear immediately. Issues usually begin when sending volume increases and campaigns move beyond their initial setup, even when early results seem fine.
- Read more about How SMTP Relays Handle High-Volume Sending (And Why It Matters for Bulk Email)
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Author: MailClickConvert Team
Last Updated: January 2026
Choosing an SMTP relay service is rarely treated as a priority. Many teams make the choice during initial setup, copy a few settings, and move on. Email starts sending, and everything looks fine on the surface.