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SORBS blacklist: How to Remove Your IP from It

Recently, there has been significant news regarding the SORBS Spam Blacklist service. As of June 2024, SORBS (Spam and Open Relay Blocking System) has officially ceased operations. This means that

V
A muscular cartoon tiger wearing a black t-shirt with the warmy logo stands confidently next to text about email deliverability testing tools, metrics, and tips, on a white background with orange gridlines in the corner.

Email Deliverability Testing 101: Tools, Metrics & What You Should Be Looking For

The success of your email marketing efforts depends a great deal on your email deliverability. No matter how strong your

Illustration of an anthropomorphic tiger in a black warmy shirt with arms crossed, next to the text: Email Signature Best Practices for Cold Outreach Campaigns.

Email Signature Best Practices for Cold Outreach Campaigns

When it comes to cold email outreach, the devil is literally in the details. From the subject line to the

Error 550: Activa la Autenticación SMTP

Error 550: Activa la Autenticación SMTP en Tu Cliente de Correo

En la era de los rápidos avances tecnológicos y la comunicación fluida, el correo electrónico sigue siendo una herramienta indispensable

Texto en español sobre fondo blanco: “Direcciones de correo genéricas vs. direcciones basadas en roles: ventajas y desventajas”, con la última parte resaltada en rojo.

Direcciones de correo genéricas vs. basadas en roles: ventajas y desventajas

En el ámbito de la comunicación digital, emergen dos tipos destacados de direcciones de correo electrónico: las direcciones genéricas y

Text in Spanish says Error SMTP 554 5.4.0: ¿Qué significa y cómo corregirlo? on a white background with a subtle orange gradient.

Qué significa el error SMTP 554 5.4.0 y cómo corregirlo

Imagina la escena: después de horas preparando ese importante correo electrónico, al enviarlo recibes el frío mensaje «error SMTP 554

Reverse DNS does not match SMTP Banner

Desglosando el problema: “Reverse DNS no coincide con el banner SMTP”

En el intrincado mundo de los servidores de correo electrónico y los protocolos de comunicación, la frase “Reverse DNS does

Text in Spanish on a white background reads: Error SMTP 550 5.7.1: Cómo resolverlo [SOLUCIONADO]. The words Cómo resolverlo [SOLUCIONADO] are in red, while the rest is in dark blue.

Error SMTP 550 5.7.1 – Cómo resolverlo [SOLUCIONADO]

Imagina esto: escribes un correo impecable, lo envías con confianza, pero de pronto recibes un mensaje que indica que tu

Text graphic with the message: “Error SMTP 554 5.7.1: Por qué ocurre y cómo resolverlo” on a white background with a faded orange-pink gradient on the right side.

Error SMTP 554 5.7.1 – Por qué ocurre y cómo resolverlo

¿Alguna vez has enviado un correo que nunca llegó a su destinatario? Es frustrante, en especial si el mensaje era

A whimsical digital illustration of a round character with an @ symbol face in a top hat, standing beside an open mailbox with floating envelopes. A disco ball hangs on the left. The background has a futuristic, colorful design.

Adapting to Change: Navigating Gmail’s New Open Tracking Updates

In a recent move that’s shaking up the email marketing world, Gmail has implemented significant changes to how it handles

Greylisting

Greylisting: How It Works to Combat Spam Email

Though far more disruptive and perhaps hazardous, spam emails are essentially the digital version of trash mail. We have all

mailtester

Mail-Tester alternative. Warmy vs Mail-Tester

In email marketing, making sure your communications find their target recipients is absolutely vital. Warmy and Mail-Tester are two often

Email Queue

Email Queue: Understanding SMTP Queue for Boosting Deliverability

Within the realm of email correspondence, the SMTP (Simple Mail Transfer Protocol) queue is both a vital yet sometimes disregarded

Yahoo MX record

Yahoo Email Configuration: Full Guide to MX Records, A-Records, and DNS Setup

Customizable to your business, Yahoo Email for Business presents a strong, reasonably priced option. But correct setting is crucial if

outlook MX record

Outlook Email Configuration: Full Guide to MX Records, A-Records, and DNS Setup

Microsoft Outlook leads email management solutions since email has become the backbone of corporate communication. Outlook offers some of the

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