Question 1

What is the main difference between SMTP and mass mailing?

Accepted Answer

SMTP (Simple Mail Transfer Protocol) is the standard email sending protocol, used for individual and personalized communications. Mass mailing is a bulk sending technique optimized to send thousands of emails simultaneously, mainly for marketing campaigns and newsletters. SMTP prioritizes deliverability and personalization, while mass mailing prioritizes volume and automation.

Question 2

When should I use SMTP rather than mass mailing?

Accepted Answer

Use SMTP for: targeted B2B prospecting (less than 100 prospects/day), personalized client follow-ups, responses to specific requests, important transactional emails (confirmations, invoices), or any communication requiring maximum deliverability and full personalization. SMTP is ideal when every email counts and quality takes priority over quantity.

Question 3

When should I use mass mailing rather than SMTP?

Accepted Answer

Use mass mailing for: large-scale marketing campaigns (newsletters, promotions), sending content to your contact lists (hundreds or thousands of recipients), automated email sequences (onboarding, nurturing), or when you need detailed analytics (open rates, clicks, conversions). Mass mailing is perfect for broad distribution while maintaining some level of personalization via variables.

Question 4

Can I combine SMTP and mass mailing in my strategy?

Accepted Answer

Absolutely! It's even recommended. Use SMTP for your targeted prospecting and personalized client follow-ups (1,000 emails/day), then switch to mass mailing for larger-scale campaigns like newsletters or promotions (5,000 emails/day). This hybrid approach lets you optimize both your client relationship quality and the reach of your marketing campaigns.

Question 5

Are sending limits cumulative?

Accepted Answer

No, SMTP and mass mailing limits are independent. With the Essential plan for example, you can send 1,000 emails via SMTP AND 5,000 emails via mass mailing on the same day. This gives you great flexibility to manage different types of communications simultaneously without compromising either your personalized prospecting or your marketing campaigns.

Question 6

How does AKIDEL optimize deliverability?

Accepted Answer

AKIDEL uses several techniques: automatic IP rotation to avoid blacklisting, SPF/DKIM/DMARC authentication to prove email legitimacy, progressive warm-up of new sending addresses, intelligent bounce and unsubscribe management, real-time sending reputation monitoring, and strict GDPR compliance. These measures ensure optimal deliverability rates on both channels.

Question 7

What happens if I exceed my sending limits?

Accepted Answer

If you reach your daily limit on a channel (SMTP or mass mailing), subsequent emails are automatically queued and sent the next day. You'll receive a notification to inform you. If you regularly exceed your limits, we recommend upgrading to a higher plan (Solo Digital or Pro Access) for larger volumes suited to your needs.

Question 8

What are the best practices for maintaining a good sending reputation?

Accepted Answer

For SMTP: personalize each email, precisely target your prospects, respect delays between sends, use non-spam subject lines. For mass mailing: segment your lists, regularly clean your contacts, offer easy unsubscription, test your emails before sending, analyze your metrics and adjust your strategy. AKIDEL guides you on these best practices with automatic alerts and recommendations.

Feature	SMTP	Mass Mailing
Sending volume	1,000 emails/day	5,000 emails/day
Personalization	Full personalization	Personalization via variables
Deliverability	95-98%	85-90%
Detailed tracking	Basic	Complete analytics
Sending speed	Instant	Schedulable in batches
Use case	Targeted prospecting, client follow-up	Marketing campaigns, newsletters

We use cookies

SMTP vs Mass Mailing

SMTP

Mass Mailing

Combined

What is SMTP?

Ideal use cases:

Maximum security

Optimal deliverability

1-to-1 communication

Real-time sending

Complete comparison table

Frequently Asked Questions

Ready to optimize your B2B prospecting?