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Thread: E-mail errors, sometimes...!

  1. #1
    Join Date
    Nov 2020
    Beans
    7

    E-mail errors, sometimes...!

    We're a small company with some 15 employees. Our e-mail server didn't connect properly. When using the web-browser the user were redirected to a cloud service (as we also host).
    Here's a list of running services. Where's a good place to start the research!?

    Code:
    $ service --status-all
     [ + ]  acpid
     [ + ]  apache2
     [ - ]  apparmor
     [ ? ]  apport
     [ + ]  atd
     [ ? ]  console-setup
     [ + ]  cron
     [ - ]  dbus
     [ ? ]  dns-clean
     [ + ]  friendly-recovery
     [ - ]  grub-common
     [ ? ]  irqbalance
     [ ? ]  killprocs
     [ ? ]  kmod
     [ + ]  memcached
     [ ? ]  mysql
     [ ? ]  networking
     [ ? ]  ondemand
     [ - ]  postfix
     [ ? ]  pppd-dns
     [ - ]  procps
     [ ? ]  rc.local
     [ + ]  resolvconf
     [ ? ]  rng-tools
     [ - ]  rsync
     [ + ]  rsyslog
     [ ? ]  screen-cleanup
     [ ? ]  sendsigs
     [ + ]  ssh
     [ - ]  sudo
     [ + ]  udev
     [ ? ]  umountfs
     [ ? ]  umountnfs.sh
     [ ? ]  umountroot
     [ - ]  unattended-upgrades
     [ - ]  urandom
     [ - ]  x11-common

  2. #2
    Join Date
    May 2007
    Location
    NY's first capital
    Beans
    2,833
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: E-mail errors, sometimes...!

    You haven't provided much information.

    I would start with postfix logs and run health checks at mxtoolbox.com.
    Check firewall is configured correctly and make sure your provider
    isn't blocking any ports.
    Nothing is ever easy, but if it is difficult you must be doing it wrong.

  3. #3
    Join Date
    Mar 2010
    Location
    Squidbilly-Land
    Beans
    Hidden!
    Distro
    Ubuntu

    Re: E-mail errors, sometimes...!

    Check the system logs for errors and warnings. You first need to determine if this is a server issue or a client issue. What sort of monitoring and alarming is setup on the server?

  4. #4
    Join Date
    May 2021
    Beans
    1

    Re: E-mail errors, sometimes...!

    Could you explain your problem better ?
    More information will make it easier to help

  5. #5
    Join Date
    Sep 2011
    Location
    Behind you!
    Beans
    1,512
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: E-mail errors, sometimes...!

    Quote Originally Posted by af-crm View Post
    Our e-mail server didn't connect properly.
    Not sure what you mean by "did not connect"

    Quote Originally Posted by af-crm View Post
    When using the web-browser the user were redirected to a cloud service (as we also host).
    Hmmm...by "did not connect" earlier, were you talking about using a web browser to access the web-client on the mail server? Is this a server accessibility issue or an issue with a service such as mail, webserver or DNS?

    What is the address you are trying to reach when inside the web browser? Is it an IP address or DNS name? If DNS name, your DNS server may not be working correctly if its resolving the name to a different server. If re-directed to a different server, where did you end up?

    Quote Originally Posted by af-crm View Post
    Where's a good place to start the research!?
    It is best if you clarify exactly what the problem is with us in more detail...or check various logs.

    LHammonds

  6. #6
    Join Date
    Nov 2008
    Location
    Metro Boston
    Beans
    15,603
    Distro
    Kubuntu 20.04 Focal Fossa

    Re: E-mail errors, sometimes...!

    Does the server contain all the mailboxes, e.g, files like /var/spool/mail/username? If so, I don't see an instance of dovecot in that list of running processes. Postfix is the program than handles incoming and outgoing messages. Dovecot provides the IMAP or POP interfaces required to read the mail stored on the server. See https://ubuntu.com/server/docs/mail-dovecot

    If your organization uses "Maildir" rather than the default "mbox" mailbox format, then you need to make changes to some of Dovecot's configuration files as described in the piece cited above.
    If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

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