Alternatively, if an user adds your domain or email address to their "contacts" or their "safe-senders list" they will no longer see this notification.In addition, senders who are on the Return Path Certification list or on a user's "safe sender's" list typically experience links and images within their messages enabled by default. An "allow list" is essentially a "free pass" which allows emails from certain senders to bypass junk email filters and other precautions. You can find out more about our filtering processes here. who helps ensure the legitimacy of certain senders via their Return Path Certification program.
These services have been tailored for senders and for ISPs.
To learn more about the Sender and ISP Services, go here.
Once the IP has built a reputation for not sending spam, will typically allow for a better email delivery experience.
New IPs that are added for domains that are authenticated under existing SPF records typically experience the added benefit of inheriting some of the domain's sending reputation.
Some of the deliverability issues are the result of sender-based software configurations.
If you are running anti-virus software on your firewall or SMTP server, check for the setting "Internet Email Auto Protect" or "Internet Email Protection." If this setting is enabled, disable it and try sending a test message to our servers again. If you are unable to connect, then attempt to telnet over port 25 directly to our email servers (MTAs).
However, submitting this information does not guarantee that any message you send to users of the services will be delivered.
Senders must not use namespace mining techniques against inbound email servers.
This section provides troubleshooting information for senders who are having trouble reaching users by email.
If you are an user looking for support with your account, please visit our end user support page.
Occasionally, some of the IPs in our MX record may be out of service.