wbs316
The PC's in the office are setup as per the documentation at the link below including the certificate importation.
http://wiki.contribs.org/Email_-_Setting_up_E-mail_clients_for_SME_8.0
Well that is not incorrect, but the fully qualified name referred to in the article typically only works for LAN clients (including VPN connected clients).
As RequestedDeletion has suggested "ask the IT staff to always use and configure FQDN's."
FQDN - fully qualified domain name (which is not usually servername.domain.com.au)
Perhaps the documentation you refer to should be improved.
I'm not sure where you're suggesting that I use the sme server domain name www.theirdomainname.com.au in both the mobile client and local PC clients. The mobile uses the mail server entry of "mail.theirdomainname.com.au" (theirdomainname is obviously not what is really entered but that is how I am presenting it here) and the PC's in the office use the mail server entry of "theirservername.theirdomainname.com.au" being the fully qualified name of their server as per the documentation.
When you specifiy the IMAP & SMTP server names in either the mobile phone email client or the PC email client, use
www.theirdomainname.com.au instead of mail.theirdomainname.com.au
It is not strictly necessary to use mail.theirdomainname.com.au or servername.domain.com.au.
That is probably in documentation somewhere, or if not, then it has certainly been said many many times in these forums over the years.
I know it works as I have many different email clients configured on mobiles, tablets & PCs, some PCs are in the LAN, some at remote locations connecting via ADSL & some connect via VPN to the LAN, & they all use
www.mydomain.com.au for incoming & outgoing mail server hostname.
You must use secure connections & ports 465 & 993 (for iMAP) as sme server requires that.
Yes I understand that we are obfuscating the real domain name here.
Also see this for changing the certificate CommonName to be
www.yourdomain.com.au (or whatever you want)
http://wiki.contribs.org/Certificate#Custom_Certificate_for_SME_7.1.3_and_above