Common SMTP configurations

SendStreak connects to email servers using the standard SMTP protocol. Below are the connection settings for the most commonly used providers. For providers with a dedicated preset in SendStreak (AWS SES, Gmail), the host and port are filled in automatically when you select the preset - just enter your credentials.

For any provider not listed here, choose Other / Generic SMTP in SendStreak and enter the settings manually. See email servers documentation for full setup instructions.

Quick Reference

Provider	Host	Port	TLS	Guide
AWS SES	`email-smtp.[region].amazonaws.com`	587	STARTTLS	AWS SES guide
Gmail	`smtp.gmail.com`	587	STARTTLS	Gmail guide
Maileroo	`smtp.maileroo.com`	587	STARTTLS	Maileroo guide
Yahoo	`smtp.mail.yahoo.com`	587	STARTTLS	-
Office 365	`smtp.office365.com`	587	STARTTLS	-

AWS SES

Host: email-smtp.[region].amazonaws.com
Port: 587
Username & password: SMTP credentials from the SES console (not your regular AWS access keys). See our AWS SES guide for step-by-step instructions.
Use SSL: no
Require TLS: yes

Note: Replace [region] with your SES region (e.g., us-east-1, eu-west-1). Your SMTP credentials must match the region where you verified your sending identity.

Gmail

Host: smtp.gmail.com
Port: 587
Username & password: Your Gmail address and an App Password (not your regular Google account password). See our Gmail guide.
Use SSL: no
Require TLS: yes

Note: Gmail limits sending to 500 emails per day for regular accounts and 2,000 per day for Google Workspace accounts. For higher volumes, consider a dedicated SMTP relay service.

Maileroo

Host: smtp.maileroo.com
Port: 587
Username & password: SMTP credentials from your Maileroo Profile (Global SMTP Account) or from an Application. See our Maileroo guide for details.
Use SSL: no
Require TLS: yes

Note: Maileroo’s free tier includes 3,000 emails per month. Dedicated IP addresses are also available.

Yahoo

Host: smtp.mail.yahoo.com
Port: 587
Username & password: Your Yahoo email address and an App Password (generate one in your Yahoo account security settings)
Use SSL: no
Require TLS: yes

Office 365

Host: smtp.office365.com
Port: 587
Username & password: Your Microsoft 365 email address and password (SMTP AUTH must be enabled per-mailbox)
Use SSL: no
Require TLS: yes

Note: Microsoft is deprecating Basic authentication for SMTP AUTH. For new integrations, consider using OAuth authentication or a dedicated SMTP relay service instead. SMTP AUTH is disabled by default for organizations created after January 2020.