Outbound SMTP

Information about the Outbound SMTP service, how to configure and information on how to setup your account.

Common SPF Verification Problems
Your record does not contain an include referencing our SPF This message is displayed when your sending domain already has a valid SPF record but i...
Fri, 1 Feb, 2019 at 8:15 PM
Country Specific Outbound SMTP
If you would like your outbound SMTP only to be sent from servers in a specific country please use the following servers: Location SMTP Server S...
Thu, 14 Mar, 2024 at 7:30 PM
Outbound SMTP without Authentication using SPF
We can support multiple authentication mechanisms for outbound SMTP including username/password and IP address. However, these authentication mechanisms do ...
Mon, 7 Feb, 2022 at 2:18 PM
Advertising Lists of Businesses / Products / Attendees or list brokerage email
We do not permit outbound B2B, B2C emails advertising lists for sale.  The practice of selling, buying or sending to lists of purchased email addresses –...
Thu, 4 Apr, 2019 at 8:15 PM
Deliverability Diagnostics
We find these two sites to be very helpful in diagnosing sending issues: https://www.appmaildev.com/en/dkim https://www.mail-tester.com/ Once you h...
Thu, 19 Dec, 2019 at 9:20 PM
https://www.appmaildev.com/ this tool is amazing https://vamsoft.com/support/tools/spf-policy-tester
Sun, 16 Feb, 2020 at 10:43 AM
Outbound Routing from Office 365 to Smarthost
Ensure that you have purchased and configured SPF Authentication in the Portal and our support team have confirmed to you that the service is active prio...
Fri, 12 Jan, 2024 at 3:43 PM
TLS Certificate Validation Failure Error
The Sectigo intermediate root these new certificates use is from November 2018, so if the sending system is older and hasn't updated its trusted roots b...
Fri, 11 Nov, 2022 at 5:17 AM
Sub Accounts Creation for Outbound SMTP
Often times businesses want to segregate their SMTP account so that multiple applications or sending services can pull from the same pool of credits or use ...
Wed, 29 Nov, 2023 at 5:42 PM
Email Sending API
In addition to the standard SMTP sending via port 25, 587 subscribers can also use the email sending API for processing basic email transactions. The API do...
Wed, 31 Jan, 2024 at 6:19 PM