Modified "From" field when mailing via the SendGrid API

Product Support
1

Hi there,

I manage a Mautic setup (details below) for one of the marketing teams in our organization. They’ve asked me to allow them to use the SendGrid API using Symfony mailer to increase the throughput of marketing emails. Since switching to the SendGrid API, they have an issue with their outgoing marketing emails.

Apparently, they’ve noticed that emails are now being sent from a modified email address such as info+bounce_68aec857adfe2@marketing.redacted.com. This apparently hurts trust factor because it looks like phishing and loads of marketing mails end up in Junk now.

After some searching I found the following GitHub issue: Mail send settings not applied when using sendgrid+api scheme (except for test email) · Issue #13739 · mautic/mautic · GitHub

However, this issue is now closed and someone mentioned this should be posted on the Mautic forums instead. I’ve searched this forum but couldn’t find the topic created as a result of the GitHub issue. This is why I’m creating this topic myself.

For now, the team has reverted to using SMTP but they’ve asked me to help in their search for the cause of the issue.

Any help in finding the root cause of this issue would be welcome.

Thanks in advance,
Kind regards,
Nick

Our software
My Mautic version is: v5.2.5 (Docker)
My PHP version is: 8.1
My Database type and version is: MySQL v5.7.44

2

I am having this same issue on a new install of Mautic. I went through all the possible configuration settings and they have no impact (Sendgrid & Mautic).

Thanks,
Eric

Mautic v6.0.5
PHP 8.3

1 Like
3

After some troubleshooting, this issue seems to be related to the monitored inbox settings in Mautic. When I remove the monitored inbox, the emails are sent using the provided name and address.

4

Hi @slickric01,

Weirdly, in our setup, we aren’t using the monitored inbox settings. All fields are empty in our configuration.

Still, we have the issue I described above.

Kind regards,
Nick