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IMAP e POP3

IMAP e POP3 são dois protocolos de email diferentes. Estes protocolos são utilizados para a recuperação de emails a partir de servidores de email. Para simplificar, se estiver a utilizar um cliente de correio electrónico, pode configurar o cliente de email com IMAP ou POP3 para recuperar todos os seus emails num computador ou em qualquer dispositivo inteligente que possua. 

Cabe-lhe a si decidir se quer utilizar IMAP ou POP3. A seguir explicamos o que cada protocolo de email faz e quais são as diferenças entre eles. 

O que é POP3?

POP3 representa o protocolo dos correios 3. Uma das diferenças entre o IMAP e o POP3 é que o POP3 é mais simples do que o IMAP. O único trabalho do POP3 é descarregar emails para os seus dispositivos inteligentes ou computadores a partir de um servidor de email. Além disso, o POP3 apenas descarrega emails que estão na sua pasta da caixa de entrada. Por exemplo, não descarregará emails da sua pasta de spam, da sua pasta de rascunho, da sua pasta de envio, dos seus emails apagados, etc. 

O POP3 não sincroniza. Isto significa que uma vez que o POP3 recupera as mensagens de email de um servidor de email, o servidor de email apagará as mensagens. Portanto, não haverá cópia guardada no servidor de email uma vez que o POP3 o tenha recuperado. 

Assim, se tiver dois computadores, uma vez que um dos computadores recupere as suas mensagens de correio electrónico do servidor de email, o outro computador não será capaz de as recuperar uma vez que já foram apagadas. 

Benefícios do POP3

  • O POP3 utiliza a largura de banda de forma mais eficiente do que o IMAP. Isto é especialmente bom se tiver ligações à Internet lentas. 
  • Não há limitação no tamanho da sua caixa de entrada com POP3.

O que é IMAP?

IMAP é o acrónimo de Internet message access protocol. IMAP permite-lhe visualizar todos os seus emails que se encontram no servidor de email a partir de múltiplos dispositivos. Não só as mensagens de correio electrónico são guardadas no servidor de correio electrónico, como também o IMAP guarda em cache cópias dos seus emails para todos os seus dispositivos. 

Além disso, o IMAP sincroniza todas as suas pastas. Ao contrário do POP3, o IMAP sincroniza a sua pasta da caixa de entrada, pasta enviada, pasta apagada, etc. 

Quando utilizar IMAP, tenha em mente que se apagar um email recuperado do seu smartphone, esse email será automaticamente apagado do seu computador e do servidor de email. O mesmo se aplica quando cria uma pasta, a pasta também aparecerá automaticamente no seu computador e no servidor de email. 

Benefícios do IMAP

  • Com o IMAP, pode transferir facilmente todos os seus ficheiros de email antigos para o seu novo programa de email, se alguma vez decidir mudar de cliente de email. Demorará apenas alguns minutos, e pode facilmente transferir todos os seus emails a partir do servidor.
  • Quando escolher um email configurado com IMAP na one.com, todos os seus emails terão uma cópia guardada no servidor de email. Ou seja, se o seu computador se avariar ou for roubado, não tem de se preocupar em perder os seus dados. O nosso sistema de backup na one.com protege o seu correio contra quase todos os riscos que possa imaginar.
  • Ao contrário do POP3, o IMAP guarda uma cópia dos seus emails. Assim, o IMAP pode recuperar emails do servidor de email várias vezes, pois uma cópia do email existirá sempre no servidor até que decida apagá-lo. 

POP3 vs IMAP

Então, que protocolo de email deve escolher? 

Deve escolher POP3 se estiver a planear recuperar o seu correio eletrónico apenas uma vez a partir de um computador ou dispositivo inteligente. 

Mesmo que não tenha uma ligação à Internet, pode visualizar os seus emails usando o POP3. Além disso, poupará muito espaço de armazenamento no seu servidor de email, uma vez que os emails são apagados cada vez que são descarregados para o seu dispositivo. 

Deve usar IMAP se usar vários dispositivos. 

IMAP guarda uma cópia de todos os seus emails no servidor de email, o que significa que não tem de se preocupar com a perda de dados. Além disso, poderá ver todas as suas pastas, e todas elas terão a mesma aparência em todos os seus dispositivos.

IMAP e POP3 com a one.com

A one.com permite-lhe acesso fácil às suas contas de email IMAP a partir de computadores Windows, Linux, e Mac, bem como a partir de smartphones. 

Com o nosso webmail na one.com, tem sempre a garantia de ler e enviar emails, independentemente do computador de onde esteja online. Escolha IMAP para um acesso flexível a todos os seus emails enviados e recebidos, e escolha POP3 se quiser ter os seus emails apenas num só lugar. Na one.com recomendamos geralmente a utilização de IMAP.