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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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Dovecot Authentication failed if trying login with @domain

When I try to test my IMAP server functionality using telnet I encounter the following error. If during the test i omit the @domain.ex everything works fine(as you can see below); a login user password a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR…
ElChupito
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Postfix Splitting Domain to Separate Mailstores using LDAP

I'm investigating a new mail setup to replace Exchange in our organization using Cyrus-IMAP, Postfix and Perdition IMAP proxy server. I'm running into issues dealing with sending emails to different mail stores based on an LDAP attribute…
Phteven
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CentOS 5 : error in installing php-imap

can someone please help me with this CentOS 5 question? I am trying to install php-imap, i tried yum install php-imap but I am getting the following output: Loaded plugins: fastestmirror, priorities, security Loading mirror speeds from cached…
TMMDev
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Courier IMAP, no response

I've got a Postfix with Courier IMAP mail server mostly set up. IMAP authentication works as expected on port 143 (when SSL is disabled), but whenever SSL is enabled or port 993 is used, nothing happens. Literally, the server sends no data: openssl…
TheToolBox
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Dovecot login with username and no @domain.com extension

I have dovecot setup and working, but i can only login as a linux user without the @domain.com extension. e.g joe.bloggs is a user on the linux system. i can login using this as the imap username and the user password username = joe.bloggs -…
Dan Hastings
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EXIM - 550 Cannot receive from specified address - Sendgrid

We're having some intermediate issues with exim where some emails go through and then others get the 550 Cannot receive from specified address Error. This is the guide we used to setup…
user232423
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Autodiscover for IMAP over SSL

Is it possible to setup Autodiscover for your domain.com without the use of an Exchange Server in the back-end? I already have an IMAP/POP3/SMTP hMailServer running on Windows with IIS Web Server. When I bind the domain to use the…
Riaan
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Dovecot - Unexpected messages order after move

There is Dovecot service on the server. I had moved messages in user mailbox manually from one to another. Now I am experiencing some sorting problem on iOS device. For example: I have mail 2 days old. (Message A) I moved older mail to same…
Tomasz
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Maintain email timestamp when transferring between email servers using an email client

I am running two different email servers using Postfix and Dovecot. Some of my users have accounts on both servers and sometimes transfer emails from one to the other through their email client. When they do so, the email is showing up on the new…
drewag
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How to I authenticate with Dovecot + IMAP + PAM on CentOS?

I set up Dovecot IMAP to use PAM as suggested here: http://wiki2.dovecot.org/PasswordDatabase/PAM PAM/dovecot [root@ip-172-31-15-65 pam.d]# cat dovecot #%PAM-1.0 auth required pam_unix.so nullok account required …
Chloe
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Allow IMAP for Roundcube and as external service only for some special users. How to configure?

It's easy to set up a special passdb query in dovecot to restrict IMAP access to certain users, e.g. see this documentation on the dovecot wiki. But when I use a webmailer like Roundcube and want to allow every other user to use it (and not just…
initall
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Outlook IMAP Sent messages in wrong folder

I have outlook 2003 installed on a system that has an IMAP account an a legacy PST / POP 3 account. For some reason when I send an email using the IMAP account the mail appears in the sent items folder in the "Personal Folders" section rather than…
user18129
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PHP failing to connect to GMail via IMAP [Edited!!]

I have some php code that I'm trying to use to connect to gmail using imap. Here's the code: $hostname = '{imap.gmail.com:993/imap/ssl/novalidate-cert}INBOX'; $tmp_username = 'username'; $tmp_password = 'password'; $inbox = imap_open($hostname,…
Alexander
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How to disable search body in dovecot?

We run mail server of 30k e-mail accounts (Maildir) with Dovecot imap server. We suffer from high IO load, especially when a user starts to search large IMAP folders. Is any way of preventing search by BODY? I need to allow search by HEADERS…
user3017278
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warning: hostname localhost does not resolve to address

i'm using iRedmail on my Debian box. I tried to use outlook for for email client, but i got this error and couldn't resolve it. Nov 19 17:25:10 mail postfix/smtpd[7011]: warning: hostname localhost does not resolve to address my-ip Nov 19 17:25:10…
user199892
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