Any rotating residential proxy that supports mass emailing?

uchdollar said:

Hello house. So I'm in need of proxies that supports mass emailing, are there any? Please let me know

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Mass emailing is tricky — you’ll need proxies that are:

• Residential or high-quality datacenter with clean IPs (low spam history),
• Allow SMTP traffic (many block port 25 or outgoing mail),
• Support rDNS setup if you're running your own mail server.

Standard web browsing proxies won’t work well.
You’ll want to check the Proxies for Sale section and ask providers directly if their proxies support emailing. Always test small first!

Your ISP may have closed the default SOCKS5 port (1080) or SMTP port (25/465/587). It is also possible that Gmail has forced encryption protocols and old proxies may not be compatible.

You use SMTP and Proxy binding, specify the proxy in the Postfix configuration via relayhost = [proxy_ip]:1080, and enable SASL authentication:

smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd

DKIM/SPF alignment:
Make sure the proxy egress IP is compatible with the include:proxy_provider.com mechanism in the domain's SPF record to avoid soft failures.