SEMS

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About SEMS

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  1. Thanks for the advice. The issue seems to be that there are a lot of temporary blocks which is leading to problems when important emails generated by the system based on business rules are not received. Unfortunately, many of these emails are time sensitive.
  2. Hello, I am a developer for an app that leverages SendGrid for sending our emails from the system. The app does not send a large quantity of emails but it does send out important emails to users that can cause major issues if the email is not received. SendGrid has a Whitelabel System that I setup by adding CNAME entries. This has helped a bit but I still get complaints about random users not recieving emails and 99% of the time it's due to SpamCop. I am not able to justify the purchase of a static IP from SendGrid, so I am wondering if there is anything else I can do to alleviate emails from getting blocked. Right now, we are stuck with the default behavior of SendGrid assigning IP addresses dynamically. Our system email DNS is sems.serdp-estcp.org and here are some of the many examples of SpamCop blocking emails... PM 550 spamcop.mimecast.org Blocked - see http://www.spamcop.net/bl.shtml?167.89.100.251. - https://community.mimecast.com/docs/DOC-1369#550 554 5.7.1 Service unavailable; Client host [167.89.106.170] blocked using bl.spamcop.net; Blocked - see http://www.spamcop.net/bl.shtml?167.89.106.170. 451 Blocked - see http://www.spamcop.net/bl.shtml?167.89.100.251 550 Unable to add '123@email.com' because host 167.89.100.251 is listed on bl.spamcop.net 554 5.7.1 Service unavailable; Client host [167.89.100.251] blocked using bl.spamcop.net; Blocked - see http://www.spamcop.net/bl.shtml?167.89.100.251 550 spamcop.mimecast.org Blocked - see http://www.spamcop.net/bl.shtml?167.89.100.251. - https://community.mimecast.com/docs/DOC-1369#550 554 5.7.1 Service unavailable; Client host [167.89.106.170] blocked using bl.spamcop.net; Blocked - see http://www.spamcop.net/bl.shtml?167.89.106.170. Does anyone have any experience using SendGrid? Any input would be greatly appreciated. Thanks, SEMS Team.