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Questions tagged [sendgrid]

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0
votes
1answer
60 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 ...
1
vote
1answer
89 views

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 ...
0
votes
0answers
90 views

Postfix sender_dependent_relayhost_maps by forwarding address

Currently I am running a postfix server that acts as an mta for 5 different brands. Each domain attaches to a different network interface on the machine. Currently receiving mail works fine and ...
0
votes
2answers
112 views

Postfix: What's my default Relay Host when sending via different relay hosts?

I know that this might seems to be a lame question but hey , let me give it a try ... Hi, I am hosting different domains and trying to configure postfix to send mails through sendgrid for certain ...
3
votes
3answers
2k views

is it safe to delete /var/spool/mail/root

There is a specific server in the company I work that uses sendmail to send multiple emails to sendgrid. The file /var/spool/mail/root is about 4.9 GB, which is taking more than 50% of the disk usage. ...
0
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0answers
77 views

How to block outgoing mail to a domain with postfix using Sendgrid relay?

My server is Ubuntu and I use Postfix - SendGrid to handle email. I want to block all email sending to a specific domain (mail.ru). I use smtpd_sender_restrictions and smtpd_recipient_restrictions but ...
0
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0answers
687 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 ...
2
votes
2answers
1k views

Email from sendgrid are going to spam, spf & dkim pass & spamfilter itself says it isn't spam

At my work we use Sendgrid to send automatic e-mails to the users of our platform. Since a couple of days the e-mails are going to spam on hotmail.com & outlook.com. This is weird because the DNS ...
1
vote
1answer
525 views

Please help in configuring Sendgrid and HostGator mx records

I am trying to send emails through Sendgrid SMTP and unfortunately, all emails were landing to spam. Upon checking from mail-tester.com service, I got to know an error message that "You are not ...
4
votes
2answers
580 views

When DKIM is installed, will I still be able to send email for my domain from gmail?

Let's say I own example.com, that I install and configure dkim on my server (apt-get install opendkim opendkim-tools, etc.), and that I add the relevant public key to the domain's DNS records. Then ...
-2
votes
1answer
50 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 ...
0
votes
2answers
1k views

.NET, to SendGrid, to Gmail getting From Header missing

I received this message below within SendGrid that was being sent to Gmail. However this has always worked, and of course I am have a FROM email address included. Is this something else or a bug? ...
1
vote
2answers
473 views

EXIM relay only if recipient is at hotmail.com [closed]

I'm currently using a relay service (mailchannels and sendgrid) to send about 200k messages per month of our cPanel services, but I'd like to route only messages that have HOTMAIL recipients (because ...
0
votes
2answers
180 views

suspicious outgoing emails from my Microsoft Exchange Server 2013 box (sendgrid)

I have an on-site Exchange Server 2013 environment. We use sendgrid for outgoing e-mail delivery. I was just browsing through our sendgrid account (I don’t do that often), and I noticed a LOT of “...
5
votes
3answers
2k views

Migrating Email Providers; Are Multiple DKIM Records Viable During Transition?

I am currently gathering requirements for a small (hopefully) project of migrating from SendGrid to Mandrill as a transactional email service provider. We have been using SendGrid for close to 3-4 ...
4
votes
1answer
2k views

Exim not always sending AUTH LOGIN username/password

We are sending mail using exim (configured through WHM). With the same exact configuration, seemingly most of the time exim sends the correct AUTH LOGIN username and password, however sometimes it is ...
4
votes
2answers
3k views

Configuring white labeling between sendgrid and 1and1.com

I'm struggling to configure white labeling between sendgrid and 1and1.com. Sendgrid asks me to create a variety of subdomains on my domain registrar with specific CNAME values. I'm able to create ...
2
votes
2answers
613 views

Will adding an MX record for email forwarding conflict with an email provider like sendgrid

I'm planning on receiving email/forwarding email using postfix, but sending email using sendgrid. According to this tutorial, I need an MX record pointing to my machine - http://www.andreagrandi.it/...
0
votes
1answer
671 views

How does the DKIM from SendGrid prevent me from spoofing my email adress?

I'm making use of SendGrid to send automatic emails. First I went to the whole hassle of creating a DKIM record, before I recently discovered the whole record doesn't seem to be checked anyway, ...
0
votes
1answer
71 views

Sending bulk / single emails from a single domain [duplicate]

Let me explain our situation: We have a web application that uses subdomains for each customer instance: customer1.example.com customer2.example.com Every instance can have over 500 users, which ...
1
vote
1answer
1k views

Postfix: use relayhost only when direct delivery not specified

I read up on using relayhost with Postfix 2.6.6. It's possible to use different relay hosts, with different credentials, for different senders. But how do I use direct delivery with specific senders (...
0
votes
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://...
3
votes
1answer
3k views

postfix ignores relayhost

I have setup a sendgrid relayhost on my postfix server. This works perfectly when sending mails via sendmail: May 24 16:21:13 ip-*-*-*-* postfix/smtp[17742]: 542D01CDF: to=<mail@externaladdress....
2
votes
1answer
264 views

running localhost mta vs. php smtp'ing via 3rd party api

so the question is, would it be "better" to run localhost mta (ie. postfix) or "better" to use 3rd party restful api, embedded in the application, to send email? i am curious what people would do ...
0
votes
1answer
616 views

In Heroku's add-on of Sendgrid, how come I don't have to enter TXT fieldn in my DNS records?

When I used Amazon SES, I had to put TXT records in my DNS so that Yahoo/Gmail knows that the server is allowed to send from my domain name. However, when I signed up for Heroku and Sendgrid Add-on (...
2
votes
1answer
2k views

How to correctly add SPF record

I need to add a SendGrid SPF record for my GoDaddy domain, but I'm not sure exactly where to put it. I have an existing TXT record for @ with value of google-site-verification=XXXXXXXXXXXXXXXXXXXXXXXX....
1
vote
1answer
325 views

Using a local MTA as gateway to Sendgrid

I am setting up an email system using Interspire Email Marketer with 5 user accounts, and each user has their own Sendgrid account. We are trying to build a fast system, so we have a dedicated MySQL ...
1
vote
3answers
641 views

Does using a 'foreign' domain as email sender reduce email reputation?

We want to send emails through our webapp. Users of the app provide their email adresses. In some cases, we want to send transactional email from the webapp, using the current user as a sender. Does ...
1
vote
0answers
916 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 ...
-2
votes
3answers
275 views

Cloud service to receive up to 30000 emails a minute [closed]

I am building a business where I want the infrastructure to be able to handle up to 30000 emails per minute during peak periods. The question is what kinds of services offer this? I expect to download ...
1
vote
2answers
2k views

Configuring Postfix with other SMTP provider

I want to use SendGrid as my email sending service, but want to also use Postfix's internal queue mechanism to manage the emails sent through Sendgrid. So basically what I want to do is to configure ...
3
votes
2answers
3k views

Postfix not sending email after upgrading to Ubuntu 12.04

After upgrading a server from Ubuntu 10.04 to 12.04, postfix is no longer sending email through sendgrid.com. I followed this guide about 6 months ago and everything had been working perfectly until ...
0
votes
1answer
255 views

Sendgrid - non-virtual recipients

I need some help understanding the nature of this service with relation to incoming emails. We have adopted SendGrid for ensuring deliverability of our application's emails (automated stuff like ...
2
votes
1answer
3k views

OTRS - configure smtp to add a custom sendgrid header?

I'd like to be able to configure OTRS ticket system to send email through sendgrid but I also want to add some configuration parameters through the X-SMTPAPI sendgrid header. There's no obvious ...
0
votes
3answers
5k views

Prepend X-header to all relayed messages in Postfix

I've got several production servers running a LAMP stack. They each have a local Postfix server catching any mail from the system and from PHP, and relaying it via a smarthost (the SendGrid SMTP ...