Do Gmail reply-to domains need to match the from domain?

Marketer from Email Geeks shares remembering seeing emails get flagged because Reply-to and From domains did NOT match, and that it seems natural that you want them to match.

Email marketer from Gmass, recommends using a valid and monitored Reply-To address and keeping domain consistent with the From domain to improve sender reputation.

Email marketer from SendGrid explains that a dedicated IP address can improve your sender reputation, because you are not sharing it with anyone else and it only reflects your email practices.

Marketer from Email Geeks clarifies that there’s nothing in the Gmail sender requirements about reply-to domain needing to match the from domain, and there is no requirement that they need to align in any shape or form. Mentions some mail applications will throw a warning if the replies go to an address different than what’s in from.

Marketer from Email Geeks shares that they like to have the Reply-to address match the From address, because replies whitelist the reply-to address. But not everyone can do that. Suggests if the reply-to address cannot match, it would be nice if it could at least share the same parent domain as the From address, even if it just forwards to customer service.

Marketer from Email Geeks recommends having the From address able to receive a message even though you have a designated reply to inbox, but it is not required.

Email marketer from StackExchange explains that the Reply-To header allows specifying a different email address for replies. While not requiring domain alignment, it's good practice for consistency and avoiding spam filters.

Email marketer from Reddit user u/EmailMarketingGuru shares that while technically not a requirement, mismatched Reply-To and From domains can sometimes raise flags with spam filters and hurt deliverability. Suggests it's better to keep them aligned if possible.

Email marketer from EmailOnAcid suggests that while not always required, keeping the Reply-To domain consistent with the From domain can help build sender reputation and trust with mailbox providers.

Email marketer from Mailjet stresses the importance of using a valid and monitored Reply-To address. They recommend using a real address that is actively monitored to handle replies and feedback from recipients.

Expert from Word to the Wise explains that, while not a strict technical requirement, it is generally recommended to keep the Reply-To domain aligned with the From domain. Mismatched domains can sometimes trigger spam filters or raise suspicion with recipients.

Expert from Spam Resource says that using a valid Reply-To address that is monitored and aligning the Reply-To domain with the From domain improves deliverability, while mismatches can sometimes trigger spam filters.

Documentation from Google Workspace Admin Help explains that SPF prevents spammers from sending unauthorized messages using your domain. When you use SPF, receiving mail servers can verify that messages appearing to come from your domain were authorized by you.

Documentation from Microsoft explains that DKIM adds an encrypted signature to email headers. Email services that receive email from your domain use this signature to verify that incoming email that you send is legitimate.

Documentation from SparkPost suggests aligning the Reply-To domain with the From domain to improve sender reputation and avoid spam filters. They note that mismatches can sometimes trigger warnings or filters.

Documentation from RFC Editor explains that the 'Reply-To:' field contains address(es) where replies should be sent. If absent, replies should be sent to the address(es) in the 'From:' field.