Does using Microsoft O365 for business email affect email deliverability?
Summary
What email marketers say9Marketer opinions
Email marketer from Digital Marketing Forum mentions that smaller businesses might experience deliverability challenges with O365 if they're not actively managing their domain reputation and sender authentication records.
Email marketer from Microsoft Community responds that Microsoft 365 uses various methods to ensure high deliverability rates, including maintaining a good IP reputation and adhering to email authentication standards (SPF, DKIM, DMARC).
Email marketer from Small Business Forum explains using O365 helps him with deliverability because Microsoft handles the infrastructure and reputation, but he needs to make sure his emails aren't spammy.
Email marketer from Reddit shares that while O365 itself is reputable, deliverability issues often arise from improper setup, poor sending practices, or being flagged as spam by recipients.
Email marketer from Email Marketing Agency Website shares that segmenting your email lists and personalizing your messages can improve engagement rates, which positively impacts your sender reputation and deliverability when using O365.
Email marketer from MSP Forum mentions warming up the O365 IP address gradually with increasing volume is important for new domains to establish a good sender reputation.
Email marketer from Email Vendor Blog discusses that O365's shared IP infrastructure means your deliverability can be affected by other users on the same IPs. Monitoring your sender reputation is crucial.
Email marketer from Tech Support Blog shares common O365 deliverability issues such as incorrect DNS settings, not warming up the IP address, and spam filter triggers.
Email marketer from Email Deliverability Consulting Website answers correctly configuring SPF, DKIM and DMARC is crucial to ensuring good deliverability from O365.
What the experts say5Expert opinions
Expert from Email Geeks shares that using O365 doesn't affect deliverability in any measurable way, referencing anti-trust issues.
Expert from Spam Resource explains using dedicated IP addresses with O365 can improve deliverability by isolating your sending reputation from other users, but requires proper IP warming and management.
Expert from Word to the Wise explains that correct setup of SPF, DKIM and DMARC records is critical for deliverability when using O365, particularly to prove sender authenticity to receiving mail servers.
Expert from Email Geeks explains that O365's knowledge of the source and mail volume could influence deliverability.
Expert from Email Geeks wonders about unintentional advantages of sending from O365 to O365, citing cold lead complaints and internal filtering differences.
What the documentation says3Technical articles
Documentation from MXToolbox explains proactive monitoring of your domain's health, including checking blacklist status, SPF, DKIM, and DMARC records, can help mitigate deliverability issues when using O365.
Documentation from Microsoft explains Exchange Online enforces sending limits to prevent spam and maintain system health, which can impact deliverability if exceeded.
Documentation from Microsoft explains the importance of using SPF, DKIM, and DMARC to authenticate your domain and improve deliverability when sending emails through Exchange Online.