Скачать или смотреть PyUltra Bulk Mailer Pro — SMTP Setup & Best Practices (Full Tutorial)

Learn how to configure SMTP sending in PyUltra Bulk Mailer Pro—from adding providers and testing credentials to safe sending, rotation, bounce tracking, and deliverability best practices. Perfect for Gmail/Yahoo/Zoho/Outlook, Office365 SMTP, and self-hosted Postfix servers.

What you’ll learn
Add SMTP senders (host, port, username, app password)
Choose ports 587 (STARTTLS) vs 465 (SSL) correctly
Right-click Test SMTP + read console diagnostics
Rotation vs Simultaneous mode and per-provider limits
Throttling, delays, and quota safeguards
Bounce detection & automatic sender disabling
IMAP settings for reply/bounce checks
Proxy per sender (SOCKS/HTTP) and when to use it
Avoiding spam: SPF, DKIM, DMARC, Message-ID rules, headers
Troubleshooting common errors (AUTH, TLS, timeouts)

Chapters

00:00 Intro & prerequisites
01:12 Adding your first SMTP sender
03:45 Port 587 vs 465 (TLS/SSL explained)
06:10 Right-click Test SMTP & reading logs
09:05 Rotation vs Simultaneous sending
12:00 Safe limits, delays, and quotas
15:20 Bounce tracking & IMAP setup
18:40 Using proxies (when and why)
21:00 Deliverability checklist (SPF/DKIM/DMARC)
24:15 Common errors & quick fixes
27:30 Final tips + next steps

Requirements

SMTP account (or your own Postfix server)
App password if your provider requires it (Gmail/Yahoo/Outlook/Zoho)
IMAP access for bounce/reply monitoring (recommended)

Useful links

Download PyUltra Bulk Mailer Pro: https://www.jmktechnologies.co.in/app/down...
Features: https://www.jmktechnologies.co.in/features/
Pricing/Plans: https://www.jmktechnologies.co.in/pricing/
System Requirements: https://www.jmktechnologies.co.in/system-r...

Troubleshooting quick wins

AUTH failed: confirm username is full email + correct app password.
TLS error: match port with security (587=STARTTLS, 465=SSL).
Timeouts: try without proxy, then verify proxy host/port/creds.
Bounces: lower per-sender limits; check SPF/DKIM/DMARC; warm up.
Blocks after several sends: the app auto-disables on bounce thresholds—re-enable after fixing issues.

Compliance

Use only with permission-based lists. Follow your local anti-spam laws and provider policies.

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