Questions tagged [sendgrid]

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SendGrid sent to spam on internal domain

I'm using SendGrid with a whitelabel to send email from my domain name, a-non-existent-account@example.com. The whitelabel works perfectly for outside delivery, but when sending to an inside account ...
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1answer
2k views

EXIM - 550 Cannot receive from specified address - Sendgrid

We're having some intermediate issues with exim where some emails go through and then others get the 550 Cannot receive from specified address Error. This is the guide we used to setup EXIM: https://...
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0answers
957 views

IIS 6 Smart Host Outbound Security

I'm using the IIS 6 smart host setting to forward all email sent through IIS to SendGrid. It works fine if I set the Outbound Security and smart host settings at the top level of the Default SMTP ...
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11 views

Postfix subdomain configuration for SendGrid

I have an Ubuntu 18.04 machine with the FQDN and hostname worker.example.com. I want to send mail via SendGrid and have whitelisted the example.com domain using DNS records. /etc/mailname is set to ...
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0answers
49 views

How to get unblocked from email spam servers probably thanks to Sendgrid?

Some time ago, Sendgrid had a security breach which I THINK affected the company I am working for. Right now, emails sent to popular email servers like outlook are not arriving at the customers. ...
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0answers
580 views

Does open rate of BCC affect deliverability?

Currently I BCC an internal email (records@mycompany.com) for all transactional emails, to keep records that we can easily look up I've just realised that this might negatively affect our ...
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1answer
70 views

How can I decide which emails go through SMTP relay?

I am using postfix configuration that use SMTP relay on Sendgrid service like this: smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous ...
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1answer
1k views

What is wrong with my SASL?

So the story goes: I have a score of CentOS 6.9 virtual machines, migrated to Microsoft's Azure cloud by VHD upload. Once deployed I found out that Azure doesn't allow to send out email directly from ...
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1answer
58 views

Postfix stop continuously

I just ask this question in unix.stackexchange.com but I did not get any answer. I hope will lucky in here at least. Please ignore the question's stupidity. I am a noob to linux. I was successfully ...