I setup Postfix for my outgoing mail server. It worked fine for a few weeks, and then it just stopped. I traced the problem to my IP being added to a blacklist. I contacted customer support, and they frankly told me not to try and setup an email server. They suggested I take a snapshot of my droplet, and get a new IP, but I would likely get blacklisted again. This is all despite having dmarc, spf, dkim email verification setup.
I host several sites, and they all have an email form that needs to use an outgoing mail server.
Does anyone have a suggestion for a 3rd party that is cheap, as the mail traffic on all of my sites is very low
Thanks.
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Hello, @xar86413
In first place I will recommend you to check why the droplet IP was blacklisted in first place. Have you asked for any justification of the blacklist from the third party?
I will recommend you to check the score of your outgoing emails using this website:
You can send an email to it and then it will check the score of the email. Please make sure to send a valid test email - the emails must include full body message, signatures, attachments and subject.
Also please make sure that your mail list is fully OPTED-IN.
You can check these tutorials:
How To Install and Configure Postfix as a Send-Only SMTP Server on Ubuntu 20.04
How To Use Google’s SMTP Server
How To Set Up Gmail with Your Domain on DigitalOcean
You can also check this mini tutorial on how to use Gmail with Postfix SMTP server:
https://www.digitalocean.com/community/questions/using-gmail-with-postfix-smtp-server
Hope that this helps! Regards, Alex
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