How can I test email deliverability to mailboxes protected by Mimecast?
Summary
What email marketers say8Marketer opinions
Email marketer from Reddit shares that setting up a personal email account protected by Mimecast and sending test emails to it is a good way to see how Mimecast filters your messages. [https://www.reddit.com/r/emailmarketing]
Email marketer from Inbox Monster shares that their platform supports Mimecast in their B2B seedlist for inbox testing, allowing users to assess placement within Mimecast-protected environments. [https://www.inboxmonster.com/]
Marketer from Email Geeks shares that Inbox Monster supports Mimecast in their B2B seedlist for inbox testing.
Email marketer from Litmus shares that inbox placement testing helps identify if emails land in the inbox, spam folder, or are blocked entirely by filters like Mimecast. [https://www.litmus.com/]
Email marketer from Mailjet Blog explains that using seed lists helps monitor inbox placement at various providers including those using security solutions like Mimecast. Sending to seed list addresses and checking placement helps identify potential issues. [https://www.mailjet.com/blog/email-deliverability-testing/]
Email marketer from GlockApps Blog advises using tools that offer detailed deliverability reports, including spam filter analysis and placement tests, which can help understand how Mimecast and other filters treat your emails. [https://glockapps.com/]
Email marketer from Email Deliverability Forums suggests analysing email logs, and using the logs from Mimecast to understand what may be happening with your emails. [https://www.exampleemailforum.com/]
Email marketer from Email on Acid Blog suggests utilizing pre-send testing to check how your emails render in different environments, including those using Mimecast, to optimize for better deliverability. [https://www.emailonacid.com/blog/]
What the experts say5Expert opinions
Expert from Email Geeks explains that logs are the primary method for checking if Mimecast is blocking you, as they use external lists like Spamcop and internal tools. They also let customers block specific envelope senders and manage settings.
Expert from Email Geeks mentions he's creating a Mimecast deliverability troubleshooting guide for Spam Resource and is looking to connect with someone at Mimecast to improve it.
Expert from Email Geeks explains that simply checking if mail is accepted isn't enough. You need a Mimecast account or an inbox testing tool to see if it lands in the spam folder.
Expert from Word to the Wise responds that you can check if your sending IPs or domains are on any of the blocklists Mimecast uses via their Sender Reputation portal. Monitoring this can help identify if your mail is being blocked due to reputation issues.
Expert from Spam Resource explains that incorrect or incomplete DNS records (SPF, DKIM, DMARC) are a common cause of deliverability issues when sending to Mimecast protected mailboxes. Ensuring these are correctly configured is crucial.
What the documentation says3Technical articles
Documentation from Mimecast explains that connection logs in the Mimecast administration console provide information about accepted and rejected emails, offering insight into deliverability issues related to Mimecast filtering. [https://community.mimecast.com/docs/DOC-1369]
Documentation from Mimecast describes how to configure permitted sender policies, ensuring that authorized emails bypass certain spam checks, which can be useful for critical communications. [https://community.mimecast.com/docs/DOC-1369]
Documentation from Mimecast details steps to troubleshoot email rejections, including checking bounce-back messages and reviewing Mimecast's rejection policies, which can aid in identifying deliverability problems. [https://community.mimecast.com/docs/DOC-1662]