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Questions tagged [imap]

IMAP stands for Internet Message Access Protocol and is the other e-mail protocol along with POP.

E-mail clients using IMAP often leave messages on the server until the user deletes them. This allows multiple clients to manage the same mailbox - useful for support help desks for example.

IMAP is just one communications protocol on the web. Others include:

  • Transmission Control Protocol (TCP)
  • User Datagram Protocol (UDP)
  • Internet Control Message Protocol (ICMP)
  • Hypertext Transfer Protocol (HTTP)
  • Post Office Protocol (POP3)
  • File Transfer Protocol (FTP)

IMAP on Wikipedia

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Exchange IMAP Setup SSL & TLS

Regarding set-up of IMAP on exchange 2010 sp3, there are a couple of things I don't understand. 1) I have SSL v2 & v3 disabled on the server via registry. So how are clients able to connect to the exchange server on port 993 with SSL enabled? Is it…
Nicholas
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Reliability mechanisms in different IMAP servers

I've occasionally been burned when using IMAP to move messages from one folder to another - basically, having messages disappear into the ozone. One would think that a server would copy, confirm, then delete - but that doesn't seem to be the case,…
Miles Fidelman
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Postfix: Temporary internal error / Dovecot: Initialization failed

Today I wanted to make a mail server, but it did not work. Can you help me ? I followed this tutorial: https://www.linode.com/docs/email/email-with-postfix-dovecot-and-mysql Errors obtained: Sep 19 19:40:15 ungarscool1-1 dovecot: lmtp (2273,…
ungarscool1
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How to fix tls_sessions.db cyrusdb error?

Why there is no tls_sessions.db file and how to fix this error? So I finally decided to go with Cyrus for my mail server. (I'm still deciding exim4 or postfix though) I installed those packages: sudo apt install cyrus-imapd cyrus-common cyrus-admin…
Jeremy Dicaire
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Haproxy Load Balance IMAP,POP3,SMTP: Unable to use proxy 'imap' with wrong mode, required: http, has: tcp

I try to reverse proxy all the incoming email traffic to a mailcow-dockerized solution in my debian server via haproxy: The haproxy.cfg configuration is: global log /dev/log local0 log /dev/log local1 notice chroot…
Dimitrios Desyllas
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IMAP and Office 365 Email in One domain

I have been hosting a site for a client for 4 years and this year they Added Office 365 to the domain. When we put in the DNS records, all of the IMAP accounts I had stopped working. Is there a way to keep the domain specific IMAP accounts along…
user406258
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Postfix + Dovecot login fail only in Imap

sorry in advance because Im sure the problem is stupid, but after two days trying different configurations from Google and Serverfault it still not working. Im Newbie in Postfix/Dovecot After upgrading Debian, I configured (for first time) Postfix…
Javier García Serrano
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Courier IMAPd: "NO Error in IMAP command received by server"

So I'm setting up a mailserver here - Courier & Postfix on Debian 7.8, authenticating against MySQL. Got it mostly set up - I can send mail, and the address is also receiving mail properly, with postfix putting it in the correct Maildir, everything…
Draesk
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Some IMAP folders not showing in Roundcube after email server migration

I'm in the process of moving email servers and am having some with nested IMAP folder. The new server uses a mailinabox installation and is based on postfix, just as the old email server was. I thus copied over the entire contents of the email…
duck degen
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Postfix immediately closing connection for one client

I have a problem with one client on my mail server (Postfix, Dovecot, Spamassassin, Postgrey). They can log in to pick IMAP e-mail up, but they can't send through the outgoing SMTP server. The imap-login line looks just like any other client login…
Spuggiehawk
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Google Mail Like IMAP (Web) Application

I'm looking for an IMAP web frontend (or client application) that has the features and speed of Google Mail minus the ads and privacy concerns. Most important are simple user interface, fast search speed even on large boxes and the conversation…
Elmar Weber
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Escaping Double Quotes in IMAP Search String

I have a testing email with the following Subject: this's is a "TEST" of "quote's" I'm trying to find the correct string to give the IMAP SEARCH call so that it will find that email. I am running into trouble because the syntax for a multi-word…
RedDwarfian
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DNS , MX and SMTP. Mail storage

I have basic understanding of how everything works. But I want to get better understanding and dive deeper. I will how do I understand all these stuff. Consider we are sending letter to hello@world.com When we are sending letter firstly DNS…
CROSP
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What special kind of IMAP mailbox is "foo@user.alice."?

Preparing an IMAP server migration and checking for connected components of users sharing mailboxes, we stumbled over a some unusual ACL patterns observed when running listaclmailbox * in cyradm (server is running Cyrus IMAP…
Jens Erat
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Add new email user in Dovecot

I installed Dovecot 2.2.10 & Roundcube in Amazon Linux (apparently it's a CentOS variant). If I want to add a new mailbox (e.g. info@mydomain.com) to IMAP, how do I add this mailbox? I read from Dovecot documentation, there are quite a lot different…
Raptor
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