Try going into Settings > Mail, Contacts, Calendars > select the account > account name , tap on SMTP (under the ‘Outgoing Mail Server’ heading) and then tap on your Primary Server and try entering your email account and password and see if it then works
Reconfigure your email at your iPhone and restart phone will help to resolve the above error.. 🙂
Problem to login to email accounts and the system shows this error message:
Plaintext authentication disallowed on non-secure (SSL/TLS) connections
If you do not want to use SSL/TLS connection to get your email, and to disable SSL/TLS secure connection, do the following:
>> Edit dovecot configuration file: /etc/dovecot.conf using your favorite Linux editor such as vi or pico.
>> Change the value for this directive from:
disable_plaintext_auth = yes
disable_plaintext_auth = no
Restart service dovecot and exim
# /etc/init.d/dovecot restart
# /etc/init.d/exim restart
Sometimes you will face the below error message in horde (Not in Squirellmail and RoundCube) while sending the email.
” There was an error sending your message: Failed to add recipient: [SMTP: Invalid response code received from server (code: 550, response: Authentication failed)] ”
Login to the horde.Click “option” button at the top and fillup the Personal Information of that email account.Now logout and login again and try to send the emails.
The meaning of above err cPanel included the SPF record in the Zone file on the local server, but since that server is not authoritative for the domain, the record will not be processed by remote SMTP sessions.
While checking the exim_mainlog for the failure issue:
20013-06-26 00:40:00 lowest numbered MX record points to local host: mydomain.com (while verifying firstname.lastname@example.org
To fixed the above problem:
This messages states that mydomain.com is using a remote Mail server and the entry for that domain exists in /etc/localdomains on local server. If mydomain.com doesn not use a remote Mail server, then entry for main domain should be in the file /etc/localdomains is missing and need to add it, manually.
Login to server using SSH edit such as vi or vim or nanao, add mydomain.com to the file:
Save and then restart Exim
# /scripts/restartsrv exim
Issue reported receiving duplicate email message at different time.
Received an email message at 02:00 pm, an hour later they received the same email message again.
This should not happen with every email account under server, but it does happen from time to time.
Server running the latest release of the WHM/cPanel.
Re-installed Exim and reset mail inboxes and databases, but without much success. I have also made sure that there are no accidental duplicate forwarding or POP accounts.
It is likely that the client’s email program got disconnected before downloading email messages, successfully, from the server. That said, the server won’t delete the email message or messages unless instructed to do so by the client’s email program. It might be your client’s have an unstable connection from either their ISP or from the server.
Another issues may be arising from the option “Leave mail on server” in the email program.
Please, check the Message-id header record of the duplicate email messages. If they are the same, then it is most likely a POP3 issue. If they’re different, then there’s something wrong at one or the other end of the SMTP email transfer.
One final thought, check the contents of the actual POP3 inbox file to see if they are holding duplicates. If not, then it is almost definitely an email client/connection issue.
Login to server using SSH,edit the following file.
Remove or add the extension of your choice
# vi /etc/cpanel_exim_system_filter
# Exim filter
if $message_body matches “name=”[^”]+.zip”” or
$message_body matches “name=”[^”]+.scr”” or
$message_body matches “name=”[^”]+.exe”” or
$message_body matches “name=”[^”]+.pif””