What are the pros and cons of using the same domain or subdomain for both cold outreach and regular email sending?

Email marketer from Mailjet shares that using a subdomain for marketing or transactional emails isolates the reputation. If one subdomain encounters deliverability issues, it's less likely to affect the deliverability of emails from other subdomains or the main domain.

Email marketer from Sendinblue recommends using a separate subdomain for cold outreach campaigns to protect your primary domain's reputation. This separation helps ensure that any negative impact from cold outreach doesn't affect your transactional or marketing emails.

Email marketer from Email Marketing Forum explains that if you are not careful your IP reputation could be impacted. Even if you are using a different domain or subdomain from your main email activities, if you are using the same IPs you could have a negative impact on your IP reputation. To avoid this you should make sure you have different IPs for different activities.

Email marketer from Reddit shares that using separate subdomains for different types of email activities such as cold outreach and regular emails makes it easier to track performance metrics for each activity. By isolating email streams, you can gain clearer insights into engagement rates, bounce rates, and other key metrics. This isolation ensures that the performance data for cold outreach doesn't skew or contaminate the data for more important communications.

Email marketer from SparkPost explains that using the same domain for all types of email (transactional, marketing, and cold outreach) can lead to reputation damage if cold outreach practices are not carefully managed. Poor cold outreach can result in low engagement and high complaint rates, negatively impacting the overall domain reputation.

Email marketer from Gmass mentions the importance of email warm up, as it is vital to any domain being used in outreach. A bad practice would be to send thousands of cold emails without a warm up process which would negatively affect your sending domain.

Email marketer from Reddit says that using the same domain for both cold outreach and regular email can lead to increased spam filter flags for all emails. If cold outreach practices result in low engagement and high complaint rates, email providers may start flagging emails from that domain as spam, negatively impacting the deliverability of both cold outreach and legitimate emails.

Email marketer from Reddit explains that using a subdomain for cold outreach is beneficial because it isolates the impact of potential deliverability issues. If the subdomain's reputation is damaged due to cold outreach practices, it won't directly affect the reputation of the primary domain, which is used for more critical emails. It is a way to keep the reputation clean.

Email marketer from Mailchimp explains that separating your cold outreach efforts from your transactional or marketing emails allows you to isolate the impact of potential deliverability issues. If your cold outreach campaigns result in low engagement rates or high complaint rates, this will negatively impact your overall sending reputation. By using a separate domain or subdomain for cold outreach, you can protect the reputation of your main domain and ensure that your important emails continue to reach your audience's inboxes.

Expert from Word to the Wise, Laura Atkins, emphasizes the need to protect your sending reputation. She recommends using a separate subdomain or domain for cold outreach campaigns so the impact on sender reputation is segregated. If the main domain gets flagged then all the emails may fail. If the subdomain is flagged then it doesn't matter as much.

Expert from Email Geeks explains that using the same domain for cold outreach and non-spam mail shares a reputation, which can lead to delivery and blocking problems. There are no pros to sending spam and non-spam on the same infrastructure.

Expert from Email Geeks explains that subdomains and org domains are naturally tied together, so you could see reputation blend across them, especially if one is doing really bad things. But you'll at least be able to measure them separately if you're watching closely.

Expert from Spam Resource, Steve Linford, discusses the importance of domain reputation, explaining that sending cold emails from the same domain as your primary business communications can severely damage your domain's reputation if the cold emails are perceived as spam. He advises segregating cold outreach to a separate domain or subdomain.

Expert from Email Geeks shares that using different subdomains from the two platforms (cold outreach vs regular) will keep things segregated from the corporate domain a little such as Corp.Mail, Sub1.corp.mail, and Sub2.corp.mail.

Documentation from Google explains that a properly configured SPF record can help prevent spammers from forging your domain in email messages. Without SPF, your domain is more likely to be spoofed, which damages your reputation and deliverability. If cold outreach is done through same domain, you could impact your deliverability if you have a forged SPF record.

Documentation from Microsoft explains that implementing SPF records helps prevent spoofing and improves email deliverability. SPF allows you to specify which mail servers are authorized to send email on behalf of your domain. Receiving servers use this information to verify the authenticity of incoming messages. Benefits from implementation help improve deliverability of your emails if implemented correctly.

Documentation from DMARC explains that DMARC allows domain owners to specify how email receivers should handle messages that fail SPF and DKIM checks. Implementing DMARC can help protect your domain from being spoofed and improves email deliverability. If cold outreach is done without proper authentication, DMARC helps ensure that unauthenticated messages are treated according to your policy (e.g., rejected or quarantined), preventing damage to your domain's reputation.

Documentation from RFC explains that DKIM provides a method for verifying the authenticity of email messages. Using DKIM, receiving mail servers can confirm that a message was indeed sent by the domain it claims to be from and that the message content has not been altered during transit. Helps with deliverability if implemented correctly.