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1

Yes it does answer the question. I have already upvoted it. :)
– Kamil Maciorowski
Commented Nov 18, 2018 at 17:53
4

@KamilMaciorowski Remember that the SIZE parameter is not the maximum size of the attachments, but the maximum total size of the email message... In some cases that may be important.
– acejavelin
Commented Nov 18, 2018 at 17:56
1

@acejavelin: The most important difference is the +34% overhead from Base64-encoding a binary attachment.
– grawity_u1686
Commented Nov 18, 2018 at 21:04
3

@user2284570: Just because you cannot connect to the server doesn't mean everyone else can't. I've had 100% success from six different locations so far. Maybe it's not whitelisting clients, but blacklisting you specifically?
– grawity_u1686
Commented Nov 18, 2018 at 21:06
1

@user2284570: Well, Google App Engine itself blocks all SMTP. Meanwhile I have access to several servers which don't have such blocks...
– grawity_u1686
Commented Nov 18, 2018 at 21:31

| Show 5 more comments

Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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