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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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Mail server proxy suggestions

Currently we I have a mail server for example "mail.example.com". This is a dedicated email server and we are looking to replace it. We are considering outsourcing the email management through multiple possible services (gandi email for domains…
Lee Mason
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Dovecot fails to authenticate for some users

I've the typical Dovecot + Postfix setup, with Apache and Roundcube (in a VPS). Yesterday I set up everything, and it went smooth. Right, but today I woke up with the surprise that some users simply can't login. Clients give a message like this…
Megver83
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Best way to restrict/manage PHP apps to use my postfix?

I want to allow PHP apps to send mail but under very restricted conditions. And I don't want to allow sendmail-like command for PHP apps (I'm using chrooted PHP and it's too much headache), thus I disabled mail() function in PHP. What options do I…
Jiri B
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No package php-imap available on CentOS 6

I'm running a dedicated server with CentOS 6 64bit, here is the output when trying to install IMAP: [root@localhost ~]# yum install php-imap Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.nforce.com *…
Jabare
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What is right way to migrate mails from Gmail to Dovecot with doveadm-backup?

Dovecot doc is far from being perfect, thus I'm little bit confused what is right way to get mails from Gmail to local Dovecot. See: https://wiki.dovecot.org/Migration/Gmail After some struggle I have working sync of one user but is there something…
Jiri B
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Cyrus IMAP mailbox replication. Is it encrypted over the WAN?

Servers are both Debian 9. According to Debian package search they are version 2.5.10. I need to find out if replication as described here Cyrus Documentation: Replication is encrypted over the WAN. I know it can be with version 3+, as the…
birdwes
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Cyrus - Fix quota usage

I have a mail infrastructure running on Cyrus (2.5.10), Postfix (2.7.1) and Perdition (1.19). Recently many users have been complaining about their quota usage being displayed wrongly. When trying to solve that using quota -f, the command returned…
hiagop
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Exchange IMAP4 connector - Error Event ID 2006

A couple of users in my organisation use IMAP4 to connect to Exchange 2007 (Update rollup 9 applied) because they prefer Thunderbird / Postbox clients. One of the users is generating errors in the Application Log as follows: An exception…
MikeB
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Thunderbird sub folders grayed out after migrating to new mail server (postfix,dovecot,docker)

I migrated my old mail server (postfix,dovecot,...) to a new one (same services but with docker). In addition I changed the mail dir of the single account from .../domain.tld/name/Maildir to .../domain.tld/name (removed Maildir). I really just…
andymel
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imap-login director is not restarted after each auth request

imap-login by default in dovecot mail server is restarted after every login request keeping security in mind to avoid leak of critical data. But in a director config, the imap-login director process is not restarted on each auth request. Can…
kalyan
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DNS SRV records for IMAP are not seen or used

To the best of my knowledge, the below DNS records should work as a failover for my mail servers: example.com A 192.0.2.1 3600 www.example.com A 192.0.2.1 3600 ftp.example.com A 192.0.2.1 3600 example.com TXT "v=spf1 a mx…
Misterr Moron
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Getting error with dovecot when authenticating user (Home directory not set for user)

I am trying to set up a relatively basic postfix/dovecot IMAP/SMTP server with a MySQL backend. It appears that the authentication is successful, I just seem to be getting this error: Initialization failed: Namespace '': Home directory not set for…
Barry Chapman
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How to make dovecot and postfix use the same mail directory

I'm trying to configure postfix and dovecot to connect to the same LDAP, and I kind of succeeded. But now, I have some discrepencies. The reproduction is as: I connect to dovecot in IMAP with thunderbird I create an email from myself to send to…
Dolanor
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How to copy mail data from Mac OS X Server 5.3.1 to New Server 5.3.1

We have a Mac OS X Server v5.3.1 that has been failing, but we have many good backups. As a matter of fact, the internal HDD had failed and we are currently running off of an image on a bootable external drive. We've built a new instance of server,…
Peter
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How does Outlook cope with IMAP server change (MX)

What happens with an Outlook local inbox when there happens to be an IMAP server change (MX change) and the new IMAP server/mailbox is blank? Will Outlook retain already downloaded messages in it's data file and resync them with the new server or…
steakoverflow
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