Synergetic can be configured to work with many SMS vendors, as most will be able to support email-to-SMS (e2s) which is used for the generation of emails from within the Synergetic interface.

We have elected to partner with Sinch MessageMedia and some functionality will only be available when using their service, such as 2-way SMS.

Synergetic administrators can access the MessageMedia interface at https://hub.messagemedia.com/

A comprehensive guide for MessageMedia administrators on the use and configuration of the hub can be found here.

Alpha Tags

Why Messages Are Marked as Spam

Missing or Incorrect Email Authentication (SPF/DKIM/DMARC)

Mobile carriers and MessageMedia’s Email‑to‑SMS systems check whether your sending domain is authenticated.

• MessageMedia supports SPF checking, and issues can arise when a domain’s SPF records are not aligned.

• Missing SPF/DKIM/DMARC is a major, well‑documented cause of spam classification.

If your domain isn’t properly verified, the message may be treated as suspicious before it ever becomes an SMS.

Fix

Ask your IT team to verify:

• SPF includes your sending mail server or provider

• DKIM is enabled

• DMARC is configured

For your account to have MessageMedia’s SPF checks enabled, MessageMedia support must adjust this setting. Your MessageMedia admin user/s can request this to MessageMedia Support (support@messagemedia.com), or let us know and we can make this request on your behalf.

References:

• https://support.messagemedia.com/hc/en-us/articles/4413582361231-Email-to-SMS-Settings

• https://support.messagemedia.com/hc/en-us/articles/4413634240271-SPF-DKIM-configuration-for-Email-to-SMS