Will including links from a different domain cause email spam filter or legal issues?

Email marketer from Email Marketing Forums shares that users may not trust a different domain in an email as phishers often use this trick.

Email marketer from Mailchimp explains that authenticating your sending domain helps build trust with email providers and reduces the chances of your emails being flagged as spam, even if they contain links to other domains.

Email marketer from Reddit answers that excessive use of affiliate links from unknown domains can trigger spam filters. Recommends using a branded domain for redirects to improve deliverability.

Email marketer from Online Marketing Blog shares that tracking links from well-known services are considered safe and useful by email systems, but tracking links from obscure or less-known sources might cause issues.

Marketer from Email Geeks shares that many MSPs and RBLs give links their own reputation, which can affect the sender's reputation if the links are associated with spam. He suggests using urlscan.io to check links for potential issues.

Email marketer from StackExchange responds that GDPR concerns may arise if the different domain is associated with a different company/controller and you haven't obtained consent for data transfer to that entity.

Email marketer from Reddit recommends against using too many redirects through different domains, as they can appear suspicious and hurt your sender reputation. Suggests keeping links direct and transparent.

Email marketer from Neil Patel's Blog shares that using links from a domain with a poor reputation can negatively impact your sender reputation and increase the likelihood of being marked as spam.

Email marketer from Email on Acid shares that inconsistent branding, including using multiple domains in your email, can erode trust with subscribers and make them more likely to mark your emails as spam.

Email marketer from Litmus shares that using a reputable link tracking service (even if it's a different domain) is generally safe, as long as the service follows best practices for deliverability and doesn't engage in spammy behavior.

Expert from Email Geeks answers that different domain links won't negatively affect spam filtering, setting aside permission questions. He links to a spamresource.com article for more information.

Expert from Word to the Wise answers that consistent branding is vital. Mismatched domains in links can confuse recipients and trigger spam filters. Consider user experience and brand recognition when linking to different domains.

Expert from Email Geeks explains that there’s no real deliverability problem using different domains in email links and if really concerned, wrapping links can mitigate any concern.

Expert from Spam Resource responds that domains don't necessarily need to match, especially when a company is sending mail on behalf of another. However, strong authentication is crucial, and any reputation damage to the linked-to domain can affect your sending reputation.

Documentation from Spamhaus explains that they maintain lists of domains and IPs with poor reputations. Linking to a domain listed by Spamhaus can negatively impact your email deliverability.

Documentation from Microsoft explains that Microsoft Defender for Office 365 uses 'Safe Links' to scan URLs in email messages, rewriting URLs to point to Microsoft servers. This helps protect users from malicious links, which could flag emails containing unverified or suspicious URLs.

Documentation from Google Search Central explains that cloaking or redirecting users to a different URL than the one they initially clicked can be seen as deceptive and may result in penalties, including being flagged as spam.

Documentation from Constant Contact details how using multiple URLs from unknown sites can mean people are less likely to click or trust your emails, because they can’t be sure where the link will take them.