Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks.

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1answer
15 views

MX type and SMTP, They're different with each other

Suppose I have example0.com as my SMTP server and example1.com as MX. As you see, They're different with each other. Scenario: If I send an email , and suppose receiver has an Anit spam such as ...
0
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1answer
25 views

SwiftMailer - fsockopen() error 500

I am sending email through php using smtp and using Swift_Mailer Code: error_log("Sending Email\n"); // Get mailer $SM = Yii::app()->swiftMailer; // Get config $mailHost = ...
1
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1answer
20 views

Can not having sha-256 encryption cause gmail to not work?

My website is on a shared host platform. For over five years I was able to send smtp email via gmail from server side script but it stopped working a few months ago and Google support says it is most ...
2
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1answer
23 views

SPF and ISP authentication

I'm wondering if I have to include the SPF of any ISP used by my customers to send email with an email hosted on my server. Example : they use Bell to send email for example@example.com (where ...
1
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1answer
49 views

Getting Error 550 “No such user here” when sending mail to my other domain

I have two hosting accounts, personaldomain.com and companydomain.com. Both have User level cPanel. Whenever I try to send email from personaldomain.com to any email address on companydomain.com, I ...
1
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0answers
268 views

VestaCP Exim is not sending emails

Recently i did VestaCP install on a new server of my own, and then, created two users and uploaded site&database content to it, and so, everything was working normally, except for one thing, that ...
0
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1answer
62 views

Bulk Marketing Email With multiple Sender ( Bulk Email Software vs Own SMTP )

We are planning for an OTA (Online Travel Agency) comprising of Hotel bookings. We would like to provide each Hotel Registered with us with 'Bulk Marketing Email' sending feature, for example if xyz ...
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0answers
173 views

Why am I getting “Sender address rejected: not logged in” in my email after successfully sending from authsmtp?

I am using Wordpress's Postman SMTP plugin to hook into my authsmtp account in order to send emails from my private namecheap account. Wordpress to authsmtp works. It uses port 465 and a "Plain" to ...
3
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2answers
67 views

Office 365 email whitelist

It appears as though our server has been blocked from sending emails to email accounts that use office365's MTAs. We run campaigns that send 100's of emails out in a go (to subscribed users), this ...
1
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1answer
49 views

Gmail SMTP server: different password from the one used by the owner?

Im going to use a Gmail email address as an SMTP server. So I need the email password. https://www.digitalocean.com/community/tutorials/how-to-use-google-s-smtp-server The problem: my customer ...
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1answer
448 views

What is SMTP Error 550

I send a newsletter to people that subscribe to it. I use my website's server to send the e-mail (from e-mail management software called Interspire), and it uses my e-mail address' SMTP information to ...
1
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1answer
75 views

Email password fails with & in it

Wondering if anyone has seen this before, where on Exim 4.85 an email password fails because it had an & in it? As you can imagine it took ages to get to the bottom of what was going on. Kept ...
0
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0answers
126 views

Domain stuck in google DNS?

I have a customer who made a mess of things setting up google apps. She has now closed her google apps account and we are getting emails via POP to gmail successfully using gmail fetch. However in ...
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1answer
1k views

IP blocked because: (smtpauth) Failed SMTP AUTH login from - can someone explain?

Today I had a few users blocked in our server firewall because of: (smtpauth) Failed SMTP AUTH login from Can someone explain the reason? What does it exactly mean? Could someone be using the our ...
0
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1answer
183 views

Using an external mail sending provider for my websites?

Let's say I have made 20-30 websites, that send emails such as contact form responses, welcome emails, forgotten password reminders, and similar transactional emails. What is the benefit of using a ...
1
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1answer
1k views

phpbb3 email settings for Zoho SMTP server

I've spent a while guessing and googling, and haven't found an answer. In the past I setup my forums to send via my Gmail account, but spambots with fake emails have flooded my inbox, so I setup ...
4
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1answer
1k views

Google SMTP relay sending limits

I'm considering using Google Apps for email with my company domain and for sending emails to customers from my website using SMTP. On Google's website it says the following: Limits for registered ...
0
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1answer
162 views

How does my server validate my email address

I am attempting to send emails from my website (localhost, test and live) and I am finding that only a fraction ever reach their destination. One of the problems may be that my web server is not ...
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1answer
1k views

Email error “Authentication is required for relay”

I have recently moved all of my websites to a new (and more secure server). Out of 50 customers, 2-3 are having email issues, specifically with sending emails within the same domain and to domains on ...
1
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1answer
163 views

Adding an SMTP server that would result in more delivered emails

I am very curious, so sorry if I am asking this in the wrong way, but I can't find this info anywhere. I have a newsletter service installed in my Joomla 3.1 that allows me to send emails via PHP ...
2
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1answer
2k views

Problems using PHP on a Plesk Windows dedicated server

I'm having a few issues with my dedicated Windows server that has a Plesk panel: 1.) I can't send e-mail via PHP's mail() function, it always returns the following error: SMTP server response: ...
2
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1answer
224 views

using gmail for automated site emails - recommended? allowed?

is it okay to use gmail to send automated emails for your website via SMTP? i know there are services like Amazons SES, but i don't know if i need it. I want to only send the following types of ...
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1answer
894 views

Email containing links of a website is landing in SPAM

I am using sendgrid SMTP Server to send the e-mails from my java web application. The issue is the any e-mail containing external links to a one website and images are going to spam. If i remove the ...
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0answers
18 views

Guide to migrating live Ubuntu server [duplicate]

Does anyone know of a good guide for migrating from one Ubuntu server to another. I am going to move the home of my live ruby on rails application and I need to have as little down time as possible, ...
2
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2answers
1k views

Using a SMTP Service for email

This may be a horribly obvious question, but I'm learning and just need someone to confirm it for me. I putting together a private social network that needs to email their members (through the social ...