Support Center
  • knowledgebase
  • announcements
  • home
  • contact us
Search

Most Popular
Recently Added
Recently Updated
Troubleshooting
Top :: Email : Troubleshooting :
There are no subcategories.
Articles in Troubleshooting

Title Updated Views
Plesk-hosted domain or email: "Can't connect to server" or "connection time out" 1 year ago  2311
Troubleshooting Secure Certificate Issues in Email 1 year ago  5122
Update your SMTP port, SSL settings and SMTP Authentication in Outlook 2013-2019 4 years ago  2119
Troubleshooting IMAP Folders Issues with IMAP and Outlook 2013 some Outlook 2016/365 4 years ago  12260
MS Outlook >2007 Cannot verify Security Certificate warning 4 years ago  13001
Trusting an updated certificate in Mac Mail or iPhone 5 years ago  2246
Deleting a Certificate in Mac keychain access 5 years ago  2135
Certificate Domain Mismatch error when connecting to an HIS mail server 5 years ago  2081
Problem downloading messages via POP 5 years ago  2306
Mac Mail: Set up trust for the SSL certificate 6 years ago  5845
Known issue with Apple Mail and El Capitan. 7 years ago  4733
Rebooting Computer/Router to Update DNS after a Change of IP address 7 years ago  4489
Outlook 2016: POP3 duplicates after installing the February 16 Update 7 years ago  5911
Outlook 2016 IMAP not synching Inbox 7 years ago  27417
How To View Received Email Headers 7 years ago  5327
Using the headers of an email message to investigate a delay 8 years ago  6969
My email box is full. How do I empty it? 8 years ago  6194
I can get my mail but can't send any? 11 years ago  4902
Outlooks sends multiple copies of the same email 12 years ago  3889
(Showing 1-19 of 19)
For news and system status updates, check: status.his.com
Open a ticket in our Support Center
For telephone support, call 301-255-0500 or 1-888-818-0500, option 2
HIS tech support hours: 24/7/365

Heller Information Services
30 West Gude Drive - Suite 220 Rockville, MD 20850-1161
Tel: 301-255-0500 fax: 301-637-3449 Toll-free: 1-888-818-0500
Email: support@his.com