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Outgoing mail options

Posted January 22, 2021 392 views
EmailLEMPUbuntu 18.04

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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xar86413
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alexdo January 23, 2021

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:

https://www.mail-tester.com/

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

How To Use Google's SMTP Server
by Mateusz Papiernik
by Pablo Carranza
A little-known feature about Gmail and Google Apps email is Google's portable SMTP server. Instead of having to manage your own outgoing mail server on your DigitalOcean VPS, you can simply configure Google's SMTP server settings into whatever script or program you wish to send email from.
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