Server Fault Stack Exchange
Server Fault Stack Exchange

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

603 questions
1
vote
1 answer

Recovering deleted plain text (emails) files from raw disk image

I'm hosting my own linux mail server for my family. Yesterday my father lost all the mails in his Inbox folder. I'm still not sure whether it's due to a terrible user error or compromised password, but that's not the point here. Thanks to Murphy's…
piwai
  • 11
  • 5
1
vote
1 answer

Postfix DDoS mitigation: how to whitelist IPs for IMAP access to a single mailbox

Does (Zimbra using) Postfix have an option to whitelist IPs or domains for IMAP logins for a specific mailbox only? This is what we would like to achieve: all IPs can open an IMAP connection on port 993 with valid a@example.com credentials all IPs…
imapq
  • 11
  • 2
1
vote
1 answer

Outlook and Thunderbird connecting to IMAP server where mail has been deleted

Have a rebuilt IMAP mail server which is missing emails for a time period. I have tried to search but only found articles about migration. Question is, will outlook and thunderbird etc sync such that it deletes locally the mail which it no longer…
wcndave
  • 115
  • 4
1
vote
2 answers

Why isn't disk space reduced after deleting mails through IMAP with Dovecot?

I'm running an email server with OpenSMTPD and Dovecot on Linux and accessing emails using IMAP with a Thunderbird client. When I delete an email in Thunderbird, why doesn't disk space usage go down? As an example, one user's mbox files are stored…
Kevin
  • 215
  • 2
  • 10
1
vote
0 answers

IMAP to Office 365 migration error

I am migrating mailboxes from an on-premise IMAP server to Office 365. Most of the accounts are migrating fine, but I'm hitting the following error on a handful of accounts. Error: MigrationMRSPermanentException: Error: Uid value is out of range…
Cuthbert Rumbold
  • 11
  • 1
1
vote
2 answers

Webmail via imap unix socket - good idea or not?

I'm slowly setting up an email system on a Centos 7 server. The particular software I'm using will consist of postfix, dovecot and roundcube, although my question isn't specific to them (I think). I've gotten to the point where postfix and dovecot…
Vilx-
  • 843
  • 4
  • 16
  • 25
1
vote
0 answers

Dovecot SSL Failure (Postfix Working Fine)

We're trying to connect an e-mail client to our mail server. We have postfix and Dovecot configured and running on ubuntu. We can see that Dovecot is listening on the correct port using: $ sudo netstat -tunlp | grep :993 We can successfully test…
Ushox
  • 111
  • 1
  • 2
1
vote
1 answer

Login Fail for IMAP on Exchange Server 2016

I have deployed Exchange Server 2016. I am able to send email over 587 while I face Login failure over IMAP 993 and POP3 995. Over Microsoft Tool https://testconnectivity.microsoft.com/ IMAP Test passes but using any other means (Java Mail or…
MalTec
  • 111
  • 1
  • 3
1
vote
0 answers

Roundcube IMAP log -- NO [AUTHENTICATIONFAILED] Authentication failed

system: Ubuntu 17.10 This is the error I am getting when trying to log in log-file /var/lib/roundcube/logs/imap: [17-Apr-2018 22:03:13 -0700]: <3aedeusd> [1116] S: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE…
MeSo2
  • 254
  • 1
  • 3
  • 18
1
vote
2 answers

Timeout when connecting to remote imap server

I have a google compute cloud VM (Ubuntu 17.10) and I am trying to setup a mail daemon. I have installed postfix and dovecot according to this article (all steps followed exactly, from a fresh install). Running sudo netstat -tuplen yields: Active…
kurdtpage
  • 150
  • 6
1
vote
2 answers

migrating email public folders from cyrus imap to exchange 2010

I'm trying to find out the best way of migrating a public folder structure from cyrus imap to exchange 2010. We have about 300Gb of emails in a public folder structure on a cyrus-imap server, that we want to migrate to exchange 2010. Initially I…
Grant Collins
  • 159
  • 2
  • 9
1
vote
1 answer

cyradm delete mailbox permission denied

I have a new ClearOs 7 system. It has Cyrus IMAP installed. In trying to copy the mailboxes from the old server, I seem to have screwed up one of them. It has a folder called Junk E-mail which is only partly there. I am trying to sort it out with…
Nikki Locke
  • 171
  • 2
  • 9
1
vote
2 answers

IMAP how to login with AUTH=LOGIN in console with OpenSSL

I have seen some servers that returns AUTH=LOGIN when I request the CAPABILITY of the IMAP server e.g: 1 CAPABILITY CAPABILITY IMAP4 IMAP4rev1 AUTH=LOGIN AUTH=PLAIN AUTH=XOAUTH2 SASL-IR UIDPLUS ID UNSELECT CHILDREN IDLE NAMESPACE LITERAL+ How…
DeMarco
  • 31
  • 1
  • 6
1
vote
2 answers

Back up IMAP Server

If I move to a hosted IMAP mail server solution (e.g. Google Apps) is there a way to have an on-site back up of the mail server that can be used as a local mail archive and backup solution? What would I need to set up internally to achieve this? A…
Paul
1
vote
2 answers

Mailbox on-the-fly decryption (dovecot)

To avoid casual mailbox snooping for an IMAP server I am thinking of "transparent encryption" setup that would: Public key encrypt incoming messages at local delivery time Private key decrypt said messages at read time. (Here, the private key…
Alien Life Form
  • 2,309
  • 2
  • 21
  • 32
1 2 3
…
40 41