Unverified50% confidenceFactExact time
Gmail, combined with SMTP settings, can be configured to send emails using a custom domain email address.
1
Sources
50%
Confidence
Long-term
Relevance
9/7/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedGmail's SMTP server address is smtp.gmail.com, port 587.78% similarVerifiedProfessional email sending practices include using mailbox warm-up tools to build domain reputation, configuring SPF/DKIM/DMARC domain authentication records, and controlling daily sending volume and sending intervals.73% similarUnverifiedSMTP协议存在致命缺陷：任何人都可以在邮件的发件人字段填写任意地址72% similarUnverifiedGmail implemented new sender guidelines in February 2024, requiring senders who send more than 5,000 emails per day to Gmail users to simultaneously configure SPF, DKIM, and DMARC, with a spam complaint rate not exceeding 0.3%.72% similarUnverifiedGmail's dot-ignoring rule applies only to @gmail.com and @googlemail.com domains; Google Workspace administrators can determine their own address resolution policies for custom domains.72% similar
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