---
title: "Glossary"
id: "196316"
type: "page"
slug: "glossary"
published_at: "2025-12-03T09:03:00+00:00"
modified_at: "2025-12-08T07:26:22+00:00"
url: "https://postmansmtp.com/es/glossary/"
markdown_url: "https://postmansmtp.com/es/glossary.md"
excerpt: "Glossary Common technical terms in email"
taxonomy_translation_priority:
  - "Optional"
---

# Glossary

Common technical terms in email

[a](#a)

[b](#b)

[c](#c)

[d](#d)

[e](#e)

[f](#f)

[g](#g)

[h](#h)

[i](#i)

[j](#j)

[k](#k)

[l](#l)

[m](#m)

[n](#n)

[o](#o)

[p](#p)

[q](#q)

[r](#r)

[s](#s)

[t](#t)

[u](#u)

[v](#v)

[w](#w)

[x](#x)

[y](#y)

[z](#z)

### a

- [Abandoned cart emails](https://postmansmtp.com/es/glossary/abandoned-cart-emails/)
- [AB testing](https://postmansmtp.com/es/glossary/ab-testing/)
- [Allowlist](https://postmansmtp.com/es/glossary/allowlist/)
- [API](https://postmansmtp.com/es/glossary/api/)
- [Archives](https://postmansmtp.com/es/glossary/archives/)
- [Authentication protocols](https://postmansmtp.com/es/glossary/authentication-protocols/)
- [Automated emails](https://postmansmtp.com/es/glossary/automated-emails/)
- [Automation flow](https://postmansmtp.com/es/glossary/automation-flow/)
- [Autoresponder](https://postmansmtp.com/es/glossary/autoresponder/)

### b

- [Behavioral email](https://postmansmtp.com/es/glossary/behavioral-email/)
- [BIMI](https://postmansmtp.com/es/glossary/bimi/)
- [Bot detection](https://postmansmtp.com/es/glossary/bot-detection/)
- [Bounce rate](https://postmansmtp.com/es/glossary/bounce-rate/)

### c

- [CAN-SPAM](https://postmansmtp.com/es/glossary/can-spam/)
- [CCPA](https://postmansmtp.com/es/glossary/ccpa/)
- [CDP](https://postmansmtp.com/es/glossary/cdp/)
- [Chatbot](https://postmansmtp.com/es/glossary/chatbot/)
- [Click-Through Rate (CTR)](https://postmansmtp.com/es/glossary/click-through-rate-ctr/)
- [Conversion rate](https://postmansmtp.com/es/glossary/conversion-rate/)

### d

- [DATA command](https://postmansmtp.com/es/glossary/data-command/)
- [DKIM](https://postmansmtp.com/es/glossary/dkim/)
- [DMARC](https://postmansmtp.com/es/glossary/dmarc/)
- [DMARC Reporting](https://postmansmtp.com/es/glossary/dmarc-reporting/)
- [DNS TXT Record](https://postmansmtp.com/es/glossary/dns-txt-record/)
- [Domain](https://postmansmtp.com/es/glossary/domain/)
- [Double Opt-In](https://postmansmtp.com/es/glossary/double-opt-in/)

### e

- [Email Analytics](https://postmansmtp.com/es/glossary/email-analytics/)
- [Email Automation](https://postmansmtp.com/es/glossary/email-automation/)
- [Email Blast Service](https://postmansmtp.com/es/glossary/email-blast-service/)
- [Email Bounce](https://postmansmtp.com/es/glossary/email-bounce/)
- [Email Compliance](https://postmansmtp.com/es/glossary/email-compliance/)
- [Email Deployment](https://postmansmtp.com/es/glossary/email-deployment/)
- [Email Encryption](https://postmansmtp.com/es/glossary/email-encryption/)
- [Email Envelope](https://postmansmtp.com/es/glossary/email-envelope/)
- [Email Gateway](https://postmansmtp.com/es/glossary/email-gateway/)
- [Email Harvesting](https://postmansmtp.com/es/glossary/email-harvesting/)
- [Email Hygiene](https://postmansmtp.com/es/glossary/email-hygiene/)
- [Email Integrations](https://postmansmtp.com/es/glossary/email-integrations/)
- [Email Logs](https://postmansmtp.com/es/glossary/email-logs/)
- [Email Open Rate](https://postmansmtp.com/es/glossary/email-open-rate/)
- [Email Order Confirmation](https://postmansmtp.com/es/glossary/email-order-confirmation/)
- [Email Parsing](https://postmansmtp.com/es/glossary/email-parsing/)
- [Email Routing](https://postmansmtp.com/es/glossary/email-routing/)
- [Email Server](https://postmansmtp.com/es/glossary/email-server/)
- [Email Spoofing](https://postmansmtp.com/es/glossary/email-spoofing/)
- [Email Subscriber](https://postmansmtp.com/es/glossary/email-subscriber/)
- [Email Validation](https://postmansmtp.com/es/glossary/email-validation/)
- [Email Validation API](https://postmansmtp.com/es/glossary/email-validation-api/)
- [Email Worm](https://postmansmtp.com/es/glossary/email-worm/)
- [End User](https://postmansmtp.com/es/glossary/end-user/)

### f

- [FAQ](https://postmansmtp.com/es/glossary/faq/)
- [False Positive](https://postmansmtp.com/es/glossary/false-positive/)
- [Follow-Up Email](https://postmansmtp.com/es/glossary/follow-up-email/)
- [Footer](https://postmansmtp.com/es/glossary/footer/)

### g

- [GDPR](https://postmansmtp.com/es/glossary/gdpr/)
- [Greylist](https://postmansmtp.com/es/glossary/greylist/)

### h

- [Hard Bounce](https://postmansmtp.com/es/glossary/hard-bounce/)
- [Header (Email Header)](https://postmansmtp.com/es/glossary/header-email-header/)

### i

- [IMAP](https://postmansmtp.com/es/glossary/imap/)
- [IMAP IDLE](https://postmansmtp.com/es/glossary/imap-idle/)
- [IP Address](https://postmansmtp.com/es/glossary/ip-address/)
- [IP Warmup](https://postmansmtp.com/es/glossary/ip-warmup/)
- [Inbound Processing](https://postmansmtp.com/es/glossary/inbound-processing/)

### j

- [Java Language](https://postmansmtp.com/es/glossary/java-language/)

### k

- [Key Performance Indicator (KPI)](https://postmansmtp.com/es/glossary/key-performance-indicator-kpi/)
- [Keystroke Logging (Keylogging)](https://postmansmtp.com/es/glossary/keystroke-logging-keylogging/)
- [Knowledge Base](https://postmansmtp.com/es/glossary/knowledge-base/)

### l

- [List‑Unsubscribe](https://postmansmtp.com/es/glossary/list-unsubscribe/)
- [Looping Mail](https://postmansmtp.com/es/glossary/looping-mail/)

### m

- [MAIL Command](https://postmansmtp.com/es/glossary/mail-command/)
- [Mail Delivery Agent (MDA)](https://postmansmtp.com/es/glossary/mail-delivery-agent-mda/)
- [Mail Transfer Agent (MTA)](https://postmansmtp.com/es/glossary/mail-transfer-agent-mta/)
- [Mail User Agent (MUA)](https://postmansmtp.com/es/glossary/mail-user-agent-mua/)
- [Marketing Automation](https://postmansmtp.com/es/glossary/marketing-automation/)
- [Message‑ID](https://postmansmtp.com/es/glossary/message-id/)
- [MIME (Multipurpose Internet Mail Extensions)](https://postmansmtp.com/es/glossary/mime-multipurpose-internet-mail-extensions/)
- [MX Record](https://postmansmtp.com/es/glossary/mx-record/)

### n

- [Newsletter](https://postmansmtp.com/es/glossary/newsletter/)

### o

- [Omnichannel](https://postmansmtp.com/es/glossary/omnichannel/)

### p

- [Passlist](https://postmansmtp.com/es/glossary/passlist/)
- [Personal Folders File (.PST)](https://postmansmtp.com/es/glossary/personal-folders-file-pst/)
- [Personalized Email](https://postmansmtp.com/es/glossary/personalized-email/)
- [PHP Language](https://postmansmtp.com/es/glossary/php-language/)
- [POP Server](https://postmansmtp.com/es/glossary/pop-server/)
- [Port 25](https://postmansmtp.com/es/glossary/port-25/)
- [Postmaster](https://postmansmtp.com/es/glossary/postmaster/)
- [Public Key Cryptography](https://postmansmtp.com/es/glossary/public-key-cryptography/)

### q

- [Quarantined Email](https://postmansmtp.com/es/glossary/quarantined-email/)
- [Queued Email](https://postmansmtp.com/es/glossary/queued-email/)
- [QUIT Command](https://postmansmtp.com/es/glossary/quit-command/)

### r

- [Rate Limiting](https://postmansmtp.com/es/glossary/rate-limiting/)
- [RCPT Command](https://postmansmtp.com/es/glossary/rcpt-command/)
- [Reactivation Email](https://postmansmtp.com/es/glossary/reactivation-email/)
- [Redirects](https://postmansmtp.com/es/glossary/redirects/)
- [RESTful API](https://postmansmtp.com/es/glossary/restful-api/)
- [Return Path](https://postmansmtp.com/es/glossary/return-path/)
- [ROI](https://postmansmtp.com/es/glossary/roi/)

### s

- [Seed Test](https://postmansmtp.com/es/glossary/seed-test/)
- [Send Time Optimization](https://postmansmtp.com/es/glossary/send-time-optimization/)
- [Sender ID](https://postmansmtp.com/es/glossary/sender-id/)
- [Single Opt‑In](https://postmansmtp.com/es/glossary/single-opt-in/)
- [Smart Network Data Services (SNDS)](https://postmansmtp.com/es/glossary/smart-network-data-services-snds/)
- [SMTP](https://postmansmtp.com/es/glossary/smtp/)
- [SMTP Authentication](https://postmansmtp.com/es/glossary/smtp-authentication/)
- [SMTP Client](https://postmansmtp.com/es/glossary/smtp-client/)
- [SMTP Relay](https://postmansmtp.com/es/glossary/smtp-relay/)
- [SMTP Server](https://postmansmtp.com/es/glossary/smtp-server/)
- [Soft Bounce](https://postmansmtp.com/es/glossary/soft-bounce/)
- [Spam](https://postmansmtp.com/es/glossary/spam/)
- [SPF (Sender Policy Framework)](https://postmansmtp.com/es/glossary/spf-sender-policy-framework/)
- [SSL Certificate](https://postmansmtp.com/es/glossary/ssl-certificate/)

### t

- [TCP/IP](https://postmansmtp.com/es/glossary/tcp-ip/)
- [Temporary Email Address](https://postmansmtp.com/es/glossary/temporary-email-address/)
- [Thread](https://postmansmtp.com/es/glossary/thread/)
- [Tracking Pixel](https://postmansmtp.com/es/glossary/tracking-pixel/)
- [Transactional Email](https://postmansmtp.com/es/glossary/transactional-email/)
- [Transport Layer Security (TLS)](https://postmansmtp.com/es/glossary/transport-layer-security-tls/)
- [Triggered Email](https://postmansmtp.com/es/glossary/triggered-email/)
- [Trojan Horse](https://postmansmtp.com/es/glossary/trojan-horse/)
- [Throttling](https://postmansmtp.com/es/glossary/throttling/)

### u

- [Uniform Resource Locator (URL)](https://postmansmtp.com/es/glossary/uniform-resource-locator-url/)
- [Unique Clicks](https://postmansmtp.com/es/glossary/unique-clicks/)
- [Unsubscribe Rate](https://postmansmtp.com/es/glossary/unsubscribe-rate/)
- [User Agent (UA)](https://postmansmtp.com/es/glossary/user-agent-ua/)
- [User Experience (UX)](https://postmansmtp.com/es/glossary/user-experience-ux/)
- [User Interface (UI)](https://postmansmtp.com/es/glossary/user-interface-ui/)

### v

- [Variable Cost](https://postmansmtp.com/es/glossary/variable-cost/)

### w

- [Web Bug (also Web Beacon)](https://postmansmtp.com/es/glossary/web-bug-also-web-beacon/)
- [Welcome Message](https://postmansmtp.com/es/glossary/welcome-message/)
- [Whitelist](https://postmansmtp.com/es/glossary/whitelist/)
- [Worm](https://postmansmtp.com/es/glossary/worm/)

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