Connect any SMTP server

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TL;DR

You need a host, port, username and password from your email provider.
Port 587 or 25 uses STARTTLS (secure option off); port 465 uses SSL/TLS (secure option on).
Set up SPF, DKIM and DMARC for your domain so emails reach the inbox.

Settings

Field	What to enter
Host	Your provider’s SMTP server, for example `mail.yourbrand.com`
Port	`587` (recommended), `465` or `25`
Use secure (TLS/SSL)	On for port 465. Off for 587 or 25 (STARTTLS is used automatically)
Username / password	The mailbox or SMTP credentials from your provider
From name	How the sender appears, for example “Your Store”
Reply‑to	Where replies should go, for example `[email protected]`

FlowSend stores your password encrypted at rest.

Deliverability checklist

SPF record includes your provider.
DKIM signing is enabled for your domain.
A DMARC record exists (start with p=none and tighten later).
The From address uses the same domain you authenticated.